Often users are using a 2nd monitor to work with (my.)Spaceman.

Please be aware that after closing sessions and later restarting the application(s), the remote server will assume that the user is still working on 2 monitors, and therefore will open (my.)Spaceman on the 2nd monitor. In the case that at that moment no 2nd monitor is installed/ connected, it might happen that (my.)Spaceman is not visible after starting the application.

How to avoid this issue?

Before logging out from Spaceman, drag the application from the 2nd monitor to the 1st monitor.

How to solve this issue?

Re-connect a 2nd monitor. You should then be able to see the Spaceman application in the 2nd monitor. Please drag Spaceman to the 1st monitor.