ICE connection problems

[ManuelSchneid3r]

Currently I am trying to figure out why my application crashes when the machine is rebooted from terminal (actually it just does exit(1) somewhere without cleanup). The latter will make systemd send SIGTERM to all processes. I am currently debugging my system by manually killing cinnamon-session and trying to figure out what exactly happens. By stracing my application I found out that the app writes

read(7, "", 8)                          = 0
write(2, "ICE default IO error handler doi"..., 68) = 68

and the does exit(1). I have no clue what csm is doing but somehow if I logout by button everything is fine. Is this an issue with the session manager?