Multiple instances created of gtn_simulator

[ppppp]

Please provide us with screenshots of what has been posted so we can best understand what is going on.

Pls find some screenshots attached.
Basically in this case only 1 GTN is active, the other deactivated.
Two instances are started, and both of them are fighting for the GUI.
Imagine a video where the two screenshots alternate automatically, because each instance is fighting for the GUI (for example proceeding the continue button). Also the GUI is then more or less flickering, because both the processes seem to try to control it in parallel.

Hope that helps