ES-Hotkey = don't need (=> and don't work). I use: Keyboard F11 (set to "menu" [uae]), F12 (set to "quit -> go es"). Yes - in Emulation-Menu: Q = Quit, Mouse-Click@Quit = Quit.
=> That is not the problem in 99,9% of my Games ;). Standard-Doing
[ES-Hotkey would be nice ...]
Yesterday i've played a game with a very big
Trainer. F1-F10. I've pressed (in the game) F11 => SOUND [something like "piep" or "krzzzz"] and then Screen changed to black. Wait. Wait. Wait. Black. I've pressed F11 again: I'm back in the game - not the Menu. I've pressed F12 - nothing happend.
F11 and F12 works in the Trainer-Info-Screen before the game. I've leaved this Info-Screen, start the game: F11/F12 doesn't work anymore. No ES-Hotkey, No F11, F12 ... only reboot raspi works 
At the first i thought F11/F12 are used by Trainer -> but Amiga has only 10 Function-Keys (i've forget this in my last post - sorry) ... But SOUND and Screen black by pressing F11.
I can't find the game again
... mhhh good
No Game, no Problem 