Thanks.
I created a bug report, in case it is a real bug. I also included a link to
a bug which is a few years old.
See here http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1428
and here:
https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=227
Now, you wrote Maybe someone has done some cleanup in the
Surprisingly, without any known changes, we suddenly receive a new error
when establishing previously error free connections. The following error
appears in the client, however the connection is established as usual
without any problems.
So why does this annoying error message appear and how can