I'm having a problem with kerbals appearing in the crafts that aren't loaded and consuming the life support. The kerbals pop in every time I go on EVA or load in a new craft and they can keep spawning regardless of crew capacity.
First time going EVA

Second time on EVA

Third time on EVA

I'm not quite sure on what is causing the issue but I thought I may as well post it here. I can only seem to fix the kerbals by switching to the craft with them in it or quicksaving.

No log... or save file... can't help.

This is very old. Wondering if this still occurs on latest version.

same problem here. Every time when i do a crew transfer, other unloaded ship will get more kerbals.
Go back to space center return to normal, but still happen next time.