When entering into corridor connect mode, and then using vesselmover's "Spawn Vessel" tool you get stuck in corridor connect. I think this is because when spawning a new vessel you focus it, and then i managed to kill the kerbal that originally started it. And so i am stuck in connect mode.

Look at the Light/Gear/Brake buttons for example

I am in creative

The ESC key doesn't work either, i have to use the button on the top. Also copying the savegame doesn't work either.

Also just noticed that when right-clicking i cant click any buttons. The menu comes up, but no buttons:

Save:
Bases1.zip

Thanks for the bug report. :-)
However, this is not a bug caused by KPBS, it is a bug caused by KAS because all the functionality from the flexible corridors is done by KAS.
Therefore i can't fix this bug, it can only be fixed in KAS.
Please report it here: KAS/issues

Got it, thanks 👍