Both commands come back with nothing.

Even when executed as root?

Yes.

I guess these sessions are still listed in the
database and that x2gocleansessions (which should be running as part of either
the x2goserver or x2gocleansessions systemd service file) never actually cleaned
the failed startup attempts up - hinting at it not running. Not a huge problem,
but your DB will continue to get full until this service is loaded.

Seems like it’s running:
 ps -auwx | grep x2go
root     11730  0.0  0.2 180496 18056 ?        S    15:51   0:00 /usr/bin/perl /usr/sbin/x2gocleansessions
root     15202  0.0  0.0 119468   984 pts/4    S+   15:53   0:00 grep --color=auto x2go

But to check status and restart/start/stop we have to use:
systemctl status x2goserver
● x2goserver.service - X2Go Server Daemon
   Loaded: loaded (/usr/lib/systemd/system/x2goserver.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2017-11-02 15:51:25 EDT; 3min 1s ago
  Process: 11718 ExecStart=/usr/sbin/x2gocleansessions (code=exited, status=0/SUCCESS)
 Main PID: 11730 (x2gocleansessio)
    Tasks: 3 (limit: 4915)
   CGroup: /system.slice/x2goserver.service
           ├─11730 /usr/bin/perl /usr/sbin/x2gocleansessions
           ├─15257 /usr/bin/perl /usr/lib64/x2go/x2golistsessions_sql ourschool.edu
           └─15260 /usr/bin/perl -XU /usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper.pl listsessionsroot ourschool.edu

Nov 02 15:54:19 ourschool.edu x2golistsessions_sql[15245]: executing external command ,,/usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroo
Nov 02 15:54:21 ourschool.edu x2gocleansessions[11730]: executing external command ,,/usr/lib64/x2go/x2golistsessions_sql'' with args: ourschool.edu
Nov 02 15:54:21 ourschool.edu x2golistsessions_sql[15249]: executing external command ,,x2gopath'' with args: libexec
Nov 02 15:54:21 ourschool.edu x2golistsessions_sql[15249]: executing external command ,,/usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroo
Nov 02 15:54:24 ourschool.edu x2gocleansessions[11730]: executing external command ,,/usr/lib64/x2go/x2golistsessions_sql'' with args: ourschool.edu
Nov 02 15:54:24 ourschool.edu x2golistsessions_sql[15253]: executing external command ,,x2gopath'' with args: libexec
Nov 02 15:54:24 ourschool.edu x2golistsessions_sql[15253]: executing external command ,,/usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper'' with args: listsessionsroo
Nov 02 15:54:26 ourschool.edu x2gocleansessions[11730]: executing external command ,,/usr/lib64/x2go/x2golistsessions_sql'' with args: ourschool.edu
Nov 02 15:54:26 ourschool.edu x2golistsessions_sql[15257]: executing external command ,,x2gopath'' with args: libexec

OK updated, rpm -q x2goserver
x2goserver-4.1.0.0-0.0x2go1.0.git20171102.1436.heuler.fc26.x86_64

Fails with both XFCE and MATE, local and NIS user:
Connection failed. DBD::SQLite::st execute failed: UNIQUE constraint failed:
sessions.display at /usr/share/perl5/vendor_perl/X2Go/Server/DB/SQLite3.pm line
233. : /usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper insertsession 50
sobolev localguy-50-1509631597_stDXFCE_dp32 at
/usr/share/perl5/vendor_perl/X2Go/Server/DB.pm line 208. Unable to insert new
session into database; parameters: port (50), hostname (sobolev) and session
name (localguy-50-1509631597_stDXFCE_dp32). 

Connection failed. DBD::SQLite::st execute failed: UNIQUE constraint failed:
sessions.display at /usr/share/perl5/vendor_perl/X2Go/Server/DB/SQLite3.pm line
233. : /usr/lib64/x2go/libx2go-server-db-sqlite3-wrapper insertsession 50
sobolev me-50-1509632000_stDMATE_dp32 at
/usr/share/perl5/vendor_perl/X2Go/Server/DB.pm line 208. Unable to insert new
session into database; parameters: port (50), hostname (sobolev) and session
name (me-50-1509632000_stDMATE_dp32). 

Nov  2 10:13:19 sobolev /usr/bin/x2gostartagent[18228]: x2gostartagent called
with options: 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D MATE both
Nov  2 10:13:19 sobolev /usr/bin/x2gosessionlimit[18245]: x2gosessionlimit has
been called
Nov  2 10:13:19 sobolev x2golistsessions[18249]: x2golistsessions has been
called with options: --all-servers
Nov  2 10:13:20 sobolev /usr/bin/x2gostartagent[18289]: Unable to insert new
session into database; parameters: port (50), hostname (sobolev) and session
name (me-50-1509632000_stDMATE_dp32).

*sigh* and that's a consequence of trying to fix https://bugs.x2go.org/1230.
I've reverted this change. F26 builds already finished.

Please update again and retest.

rpm -q x2goserver
x2goserver-4.1.0.0-0.0x2go1.0.git20171102.1437.heuler.fc26.x86_64

Takes several seconds but eventually quits and here are the errors/logs:
/Applications/x2goclient.app/Contents/MacOS/x2goclient --debug
x2go-INFO-1> "Starting X2Go Client..."
x2go-WARNING-1> English language requested, not loading translator.
x2go-WARNING-1> English language requested, not loading translator.
x2go-INFO-3> "Started X2Go Client."
x2go-DEBUG-../src/onmainwindow.cpp:546> "$HOME=/Users/fordham"
x2go-DEBUG-../src/onmainwindow.cpp:2365> Reading 5 sessions from config file.
x2go-DEBUG-../src/sessionbutton.cpp:341> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png".
x2go-DEBUG-../src/sessionbutton.cpp:341> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png".
x2go-DEBUG-../src/sessionbutton.cpp:341> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png".
x2go-DEBUG-../src/sessionbutton.cpp:341> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png".
x2go-DEBUG-../src/sessionbutton.cpp:341> Creating QPixmap with session icon: ":/img/icons/128x128/x2gosession.png".
x2go-DEBUG-../src/onmainwindow.cpp:12992> libssh not initialized yet. Initializing.
x2go-DEBUG-../src/x2goutils.cpp:219> path value at beginning: "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin"
x2go-DEBUG-../src/x2goutils.cpp:242> tmp_clean_add: ("/usr/local/bin") 
x2go-DEBUG-../src/x2goutils.cpp:270> clean_add: ("/usr/local/bin") 
x2go-DEBUG-../src/x2goutils.cpp:291> found entry i (0) in orig_path_list ("/usr/local/bin"): true
x2go-DEBUG-../src/x2goutils.cpp:309> return value at end: "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin"
x2go-DEBUG-../src/x2goutils.cpp:219> path value at beginning: "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin"
x2go-DEBUG-../src/x2goutils.cpp:242> tmp_clean_add: ("/opt/local//bin") 
x2go-DEBUG-../src/x2goutils.cpp:270> clean_add: ("/opt/local//bin") 
x2go-DEBUG-../src/x2goutils.cpp:291> found entry i (0) in orig_path_list ("/opt/local//bin"): false
x2go-DEBUG-../src/x2goutils.cpp:309> return value at end: "/opt/local//bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin"
x2go-DEBUG-../src/pulsemanager.cpp:131> Found PA binary as "/Applications/x2goclient.app/Contents/exe/pulseaudio"
x2go-DEBUG-../src/pulsemanager.cpp:132> Corresponding working dir: "/Applications/x2goclient.app/Contents/exe"
x2go-DEBUG-../src/pulsemanager.cpp:227> pulse started with arguments ("--exit-idle-time=-1", "-n", "-F", "/Users/fordham/.x2go/pulse/config.pa", "-p", "/Applications/x2goclient.app/Contents/Frameworks/pulse-10.0/modules", "--high-priority", "--log-level=debug", "--verbose", "--log-target=file:/Users/fordham/.x2go/pulse/pulse.log") - waiting for it to finish... 
x2go-DEBUG-../src/onmainwindow.cpp:2851> Creating QPixmap with session icon: '":/img/icons/128x128/x2gosession.png"'.
x2go-DEBUG-../src/onmainwindow.cpp:6532> Setting focus.

x2go-INFO-8> "Starting connection to server: sobolev.dsm.fordham.edu:22"
x2go-DEBUG-../src/onmainwindow.cpp:2952> Starting new ssh connection to server:"sobolev.dsm.fordham.edu":"22" krbLogin: false
x2go-DEBUG-../src/sshmasterconnection.cpp:175> SshMasterConnection, host "sobolev.dsm.fordham.edu"; port 22; user "localguy"; useproxy false; proxyserver ""; proxyport 22
x2go-DEBUG-../src/sshmasterconnection.cpp:248> Starting SSH connection without Kerberos authentication.
x2go-DEBUG-../src/sshmasterconnection.cpp:252> SshMasterConnection, instance SshMasterConnection(0x7ff06b285010)  created. 
x2go-DEBUG-../src/sshmasterconnection.cpp:520> SshMasterConnection, instance SshMasterConnection(0x7ff06b285010)  entering thread. 
x2go-DEBUG-../src/sshmasterconnection.cpp:831> Session port before config file parse: 22
x2go-DEBUG-../src/sshmasterconnection.cpp:841> Session port after config file parse: 22
x2go-DEBUG-../src/sshmasterconnection.cpp:906> Session port before config file parse (part 2): 22
x2go-DEBUG-../src/sshmasterconnection.cpp:916> Session port after config file parse (part 2): 22
x2go-DEBUG-../src/sshmasterconnection.cpp:941> cserverAuth
x2go-DEBUG-../src/sshmasterconnection.cpp:982> state: 1

x2go-DEBUG-../src/sshmasterconnection.cpp:1263> Challenge authentication failed. Trying password mechanism if available.

x2go-DEBUG-../src/sshmasterconnection.cpp:1269> Password mechanism available. Continuing.

x2go-DEBUG-../src/sshmasterconnection.cpp:1273> Password authentication requested.

x2go-DEBUG-../src/sshmasterconnection.cpp:723> User authentication OK.
x2go-DEBUG-../src/sshmasterconnection.cpp:1740> LOGIN CHECK:"LOGIN OK
"
x2go-DEBUG-../src/sshmasterconnection.cpp:1743> don't have interaction
x2go-DEBUG-../src/sshmasterconnection.cpp:1776> LOOP FINISHED
x2go-DEBUG-../src/sshmasterconnection.cpp:1780> No interaction needed, continue session
x2go-DEBUG-../src/sshmasterconnection.cpp:727> Login Check - OK
x2go-DEBUG-../src/onmainwindow.cpp:3056> SSH connection established.
x2go-DEBUG-../src/onmainwindow.cpp:3450> Continue normal X2Go session
x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 0: "export HOSTNAME && x2golistsessions"
x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7ff06b32b730)  Running masterCon->addChannelConnection(this, ' "89dcbf2a-0bae-4920-8ad7-73384e107fbe" ', ' "bash -l -c 'echo "X2GODATABEGIN:89dcbf2a-0bae-4920-8ad7-73384e107fbe"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; export HOSTNAME && x2golistsessions; echo "X2GODATAEND:89dcbf2a-0b" '); 
x2go-DEBUG-../src/sshmasterconnection.cpp:1842> Locking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:1844> Passing new channel connection object to channelConnections.
x2go-DEBUG-../src/sshmasterconnection.cpp:1846> Unlocking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:2034> Creating new channel.

x2go-DEBUG-../src/sshmasterconnection.cpp:2051> New channel:0x7ff06b4666a0

x2go-DEBUG-../src/sshmasterconnection.cpp:2136> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:89dcbf2a-0bae-4920-8ad7-73384e107fbe"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; export HOSTNAME && x2golistsessions; echo "X2GODATAEND:89dcbf2a-0bae-4920-8ad7-73384e107fbe";'"

x2go-DEBUG-../src/sshmasterconnection.cpp:2159> New exec channel created.

x2go-DEBUG-../src/sshmasterconnection.cpp:2208> EOF on channel 0x7ff06b4666a0; SshProcess object: 0
x2go-DEBUG-../src/sshmasterconnection.cpp:2331> EOF sent.
x2go-DEBUG-../src/sshmasterconnection.cpp:2335> Channel closed.
x2go-DEBUG-../src/sshprocess.cpp:526> SSH finished: raw output (stdout): "X2GODATABEGIN:89dcbf2a-0bae-4920-8ad7-73384e107fbe
X2GODATAEND:89dcbf2a-0bae-4920-8ad7-73384e107fbe
"
x2go-DEBUG-../src/sshprocess.cpp:537> SSH finished: true - "" (0).
x2go-DEBUG-../src/onmainwindow.cpp:3918> ""
x2go-DEBUG-../src/onmainwindow.cpp:4478> Executing remote command: "X2GODPI=90 x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both"
x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 1: "X2GODPI=90 x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both"
x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7ff06b34eea0)  Running masterCon->addChannelConnection(this, ' "8d3c99bd-457b-461d-b03e-bad3b922fe9e" ', ' "bash -l -c 'echo "X2GODATABEGIN:8d3c99bd-457b-461d-b03e-bad3b922fe9e"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; X2GODPI=90 x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_3" '); 
x2go-DEBUG-../src/sshmasterconnection.cpp:1842> Locking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:1844> Passing new channel connection object to channelConnections.
x2go-DEBUG-../src/sshmasterconnection.cpp:1846> Unlocking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:2034> Creating new channel.

x2go-DEBUG-../src/sshmasterconnection.cpp:2051> New channel:0x7ff06b1920f0

x2go-DEBUG-../src/sshmasterconnection.cpp:2136> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:8d3c99bd-457b-461d-b03e-bad3b922fe9e"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; X2GODPI=90 x2gostartagent 800x600 adsl 16m-jpeg-9 unix-kde-depth_32 us query 0 D XFCE both; echo "X2GODATAEND:8d3c99bd-457b-461d-b03e-bad3b922fe9e";'"

x2go-DEBUG-../src/sshmasterconnection.cpp:2159> New exec channel created.

x2go-DEBUG-../src/sshmasterconnection.cpp:2263> EOF on channel 0x7ff06b1920f0; SshProcess object: 1
x2go-DEBUG-../src/sshmasterconnection.cpp:2331> EOF sent.
x2go-DEBUG-../src/sshmasterconnection.cpp:2335> Channel closed.
x2go-DEBUG-../src/sshprocess.cpp:526> SSH finished: raw output (stdout): "X2GODATABEGIN:8d3c99bd-457b-461d-b03e-bad3b922fe9e
150
a7e3df0ba0c11e1adfcb72762e736ed9
14926
localguy-150-1509652357_stDXFCE_dp32
31991
31992
31993
X2GODATAEND:8d3c99bd-457b-461d-b03e-bad3b922fe9e
"
x2go-DEBUG-../src/sshprocess.cpp:537> SSH finished: true - "150
a7e3df0ba0c11e1adfcb72762e736ed9
14926
localguy-150-1509652357_stDXFCE_dp32
31991
31992
31993
" (1).
x2go-DEBUG-../src/onmainwindow.cpp:5297> Agent output: "150
a7e3df0ba0c11e1adfcb72762e736ed9
14926
localguy-150-1509652357_stDXFCE_dp32
31991
31992
31993
"
x2go-DEBUG-../src/sshprocess.cpp:381> Starting tunnel via SshProcess object 2: "localhost":31991 -> "localhost":32991

x2go-DEBUG-../src/onmainwindow.cpp:5900> "Starting NX proxy, command: "/Applications/x2goclient.app/Contents/exe/"nxproxy -S nx/nx,options=/Users/fordham/.x2go/S-localguy-150-1509652357_stDXFCE_dp32/options:150"
x2go-DEBUG-../src/sshprocess.cpp:157> Direct tunnel: waiting for connections on "localhost":32991
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "
NXPROXY - Version 3.5.0

Copyright (C) 2001, 2010 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '80431'.
Session: Starting session at '"
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "Thu Nov  2 15:52:41 2017'.
Info: Connecting to remote host 'localhost:32991'.
Info: Connection to remote proxy 'localhost:32991' established.
"
x2go-DEBUG-../src/sshprocess.cpp:109> New TCP connection.
x2go-DEBUG-../src/sshprocess.cpp:114> New socket: 29
x2go-DEBUG-../src/sshmasterconnection.cpp:2034> Creating new channel.

x2go-DEBUG-../src/sshmasterconnection.cpp:2051> New channel:0x7ff06b1920f0

x2go-DEBUG-../src/sshmasterconnection.cpp:2057> Forwarding parameters: from remote ("localhost":31991) to local ("localhost":60543)
x2go-DEBUG-../src/sshmasterconnection.cpp:2094> Temporary session port after config file parse: 31991
x2go-DEBUG-../src/sshmasterconnection.cpp:2098> Temporary session host after config file parse: localhost
x2go-DEBUG-../src/sshmasterconnection.cpp:2128> New channel forwarded.

x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "Info: Connection with remote proxy completed.
Warning: Unrecognized session type '"
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "unix-kde-depth_32'. Assuming agent session.
"
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "Warning: Failed to read data from the X auth command.
Warning: Generated a fake cookie for X authentication.
Info: Using ADSL link parameters 512/24/1/0.
Info: Using cache parameters 4/4096KB/8192KB/8192KB.
Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'.
Info: Using ZLIB data compression 1/1/32.
Info: Using ZLIB stream compression 4/4.
"
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "Info: No suitable cache file found.
Info: Forwarding X11 connections to display '/private/tmp/com.apple.launchd.UQytuZiERB/org.macosforge.xquartz:0'.
Session: Session started at 'Thu Nov  2 15:52:43 2017'.
Warning: Protocol mismatch or no X authentication data.
"
x2go-DEBUG-../src/onmainwindow.cpp:6372> Proxy wrote on stderr: "Session: Terminating session at 'Thu Nov  2 15:52:45 2017'.
Info: Your session was closed before reaching a usable state.
Info: This can be due to the local X server refusing access to the client.
Info: Please check authorization provided by the remote X application.
Session: Session terminated at 'Thu Nov  2 15:52:45 2017'.
"
x2go-DEBUG-../src/sshmasterconnection.cpp:2312> Socket 29 closed.

x2go-DEBUG-../src/sshmasterconnection.cpp:2331> EOF sent.
x2go-DEBUG-../src/sshmasterconnection.cpp:2335> Channel closed.
x2go-DEBUG-../src/onmainwindow.cpp:6225> Deleting Proxy.
x2go-DEBUG-../src/onmainwindow.cpp:6274> Waiting for proxy to exit.
x2go-DEBUG-../src/onmainwindow.cpp:6298> Checking exit status.
x2go-DEBUG-../src/sshprocess.cpp:199> Executing remote command via SshProcess object 3: "x2gocmdexitmessage localguy-150-1509652357_stDXFCE_dp32"
x2go-DEBUG-../src/sshprocess.cpp:213> this=SshProcess(0x7ff06b443140)  Running masterCon->addChannelConnection(this, ' "9c3df783-298b-4df4-96b8-2ebdc39a2085" ', ' "bash -l -c 'echo "X2GODATABEGIN:9c3df783-298b-4df4-96b8-2ebdc39a2085"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2gocmdexitmessage localguy-150-1509652357_stDXFCE_dp32; echo "X2G" '); 
x2go-DEBUG-../src/sshmasterconnection.cpp:1842> Locking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:1844> Passing new channel connection object to channelConnections.
x2go-DEBUG-../src/sshmasterconnection.cpp:1846> Unlocking SSH channel connection MUTEX.
x2go-DEBUG-../src/sshmasterconnection.cpp:2034> Creating new channel.

x2go-DEBUG-../src/sshmasterconnection.cpp:2051> New channel:0x7ff06b35d630

x2go-DEBUG-../src/sshmasterconnection.cpp:2136> Executing remote: "bash -l -c 'echo "X2GODATABEGIN:9c3df783-298b-4df4-96b8-2ebdc39a2085"; export PATH="/usr/local/bin:/usr/bin:/bin";export TERM="dumb"; x2gocmdexitmessage localguy-150-1509652357_stDXFCE_dp32; echo "X2GODATAEND:9c3df783-298b-4df4-96b8-2ebdc39a2085";'"

x2go-DEBUG-../src/sshmasterconnection.cpp:2159> New exec channel created.

x2go-DEBUG-../src/sshmasterconnection.cpp:2208> EOF on channel 0x7ff06b35d630; SshProcess object: 3
x2go-DEBUG-../src/sshmasterconnection.cpp:2331> EOF sent.
x2go-DEBUG-../src/sshmasterconnection.cpp:2335> Channel closed.
x2go-DEBUG-../src/onmainwindow.cpp:6355> Finished proxy.
x2go-DEBUG-../src/sshprocess.cpp:526> SSH finished: raw output (stdout): "X2GODATABEGIN:9c3df783-298b-4df4-96b8-2ebdc39a2085
X2GODATAEND:9c3df783-298b-4df4-96b8-2ebdc39a2085
"
x2go-DEBUG-../src/sshprocess.cpp:537> SSH finished: true - "" (3).
x2go-DEBUG-../src/onmainwindow.cpp:9749> "Command message: "
x2go-DEBUG-../src/sshmasterconnection.cpp:793> SshMasterConnection, instance SshMasterConnection(0x7ff06b285010)  waiting for thread to finish. 
x2go-DEBUG-../src/sshmasterconnection.cpp:1953> Disconnecting ...

x2go-DEBUG-../src/sshmasterconnection.cpp:1964> Deleting channel connections.

x2go-DEBUG-../src/sshmasterconnection.cpp:1972> Disconnecting session.

x2go-DEBUG-../src/sshmasterconnection.cpp:1978> Deleting sockets.

x2go-DEBUG-../src/sshmasterconnection.cpp:1985> All channels closed and session disconnected. Quitting session loop.

x2go-DEBUG-../src/sshmasterconnection.cpp:797> SshMasterConnection, instance SshMasterConnection(0x7ff06b285010)  thread finished. 
x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called.
x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called.
x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called.
x2go-DEBUG-../src/sshprocess.cpp:52> SshProcess destructor called.
x2go-DEBUG-../src/sshmasterconnection.cpp:804> SshMasterConnection, instance SshMasterConnection(0x7ff06b285010)  finished destructor. 
x2go-DEBUG-../src/onmainwindow.cpp:6532> Setting focus.

X2Go server logs:
Nov  2 15:52:39 sobolev /usr/bin/x2gofeature[14901]: x2gofeature called with options: X2GO_RUN_EXTENSIONS
Nov  2 15:52:39 sobolev /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features[14906]: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Nov  2 15:52:39 sobolev /usr/bin/x2goserver-run-extensions[14911]: x2goserver-run-extensions called with options: localguy-150-1509652357_stDXFCE_dp32 pre-start
Nov  2 15:52:39 sobolev dbus-daemon[11731]: [system] Activating via systemd: service name='org.freedesktop.PolicyKit1' unit='polkit.service' requested by ':1.1' (uid=0 pid=11727 comm="/usr/lib/systemd/systemd-logind ")
Nov  2 15:52:39 sobolev systemd[1]: Starting Authorization Manager...
Nov  2 15:52:39 sobolev polkitd[14917]: Started polkitd version 0.113
Nov  2 15:52:39 sobolev dbus-daemon[11731]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
Nov  2 15:52:39 sobolev systemd[1]: Started Authorization Manager.
Nov  2 15:52:40 sobolev /usr/bin/x2gostartagent[14928]: creating new session: localguy-150-1509652357_stDXFCE_dp32 a7e3df0ba0c11e1adfcb72762e736ed9 14926 150.108.68.33 31991 31992 31993 -1 -1
Nov  2 15:52:40 sobolev /usr/bin/x2gostartagent[14934]: blocking creation of agent's keyboard file /tmp/.x2go-localguy/C-localguy-150-1509652357_stDXFCE_dp32/keyboard as requested by session startup command
Nov  2 15:52:40 sobolev /usr/bin/x2gostartagent[14936]: successfully started X2Go agent session with ID localguy-150-1509652357_stDXFCE_dp32
Nov  2 15:52:40 sobolev /usr/bin/x2gofeature[14943]: x2gofeature called with options: X2GO_RUN_EXTENSIONS
Nov  2 15:52:40 sobolev /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features[14948]: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS
Nov  2 15:52:40 sobolev /usr/bin/x2goserver-run-extensions[14953]: x2goserver-run-extensions called with options: localguy-150-1509652357_stDXFCE_dp32 post-start
Nov  2 15:52:45 sobolev /usr/bin/x2gocmdexitmessage[15032]: x2gocmdexitmessage called with options: localguy-150-1509652357_stDXFCE_dp32
Nov  2 15:52:46 sobolev systemd-logind[11727]: Removed session 1913.