I took a very long brake flying the ATR and yesterday I took it out of the hangar. Now something very strange is happening on my PC....if I start ENG 2 (regardless if it's in the HOTEL mode or not) if I press Shift + C to exit the plane, the ENG will turn OFF! If ENG 1 is started and I exit the plane, everything works as expected. Also if I only start ENG 1 and exit the plane, nothing unusual (ENG keeps running as expected). So let's summarize:

Scenario 1:

Start ENG 2 in HOTEL mode -> Shift + C -> ENG turns off

Scenario 2:

Start ENG 2 in HOTEL mode -> Start ENG 1 -> Shift + C -> all OK (ENG2 stays in HOTEL mode - ENG 1 spinns)

Scenario 3:

Start ENG 1 -> Shift + C -> no issue

 

So ENG2 will always shut down if it's the only one that runs.

Just to add: No other key binding to Shift + C!

Are you sure SHIFT-C isn't by any chance also assigned to fuel cutoff (condition lever Shutoff) or "Mixture Cutoff" or the like?

@jcomm pretty sure because if it would have been assigned to any of those, it would kill the ENG every time....