mGBA remapping on Steam Deck (Gaming Mode) not going well at all. Could do with some help.

[Gene]

I'm trying to remap some controls. I've given up on B (Steam Deck, GBA A button). It's stuck as Fast Forward. No idea how to fix it.
So I'm trying to remap GBA A to Steam Deck A and GBA B to Steam Deck X, but I can't make it work. I've tried searching but all the info I have found, I've been doing (quick menu > controls > Port 1 Controls > A (Auto) set to A and X (Auto) set to B). It just results in them doing nothing at all.
If you can help me with B being stuck as Fast Forward so I can map B to B, that'd be even better.

[Dgo]

Try going to main menuSettingsControls/EntryHotkey/shortcutsearch for the FF key and change or disable it

[Gene]

Well that solved that mystery. My steam deck's R4 was set to Button 1, Button 1 coincidentally being the bloody B button.
Thanks for that. No idea if I'd have gone back to check on it, remove the hotkey out of frustration, or if I'd have just stayed annoyed.

[Dgo]

Glad to help.

[Gene]

Anyone have an idea on how to make remapping A to A and B to B work? When I try, they stop working entirely.

[Dgo]

Try F1Main MenuQuick MenuControllerP1 controller

Also remember if you messed up settings or something deleting retroarch.cfg will make RA go back to default.

[Gene]

Already done that. The buttons will cease to function.

[Dgo]

Will cease to function when or how?
Why don' you back up your RA's folder and try deleting retroarch.cfg?

[Gene]

If I change the bind for A and B they will not work. Cease to function. Register no inputs.
They only seem to work if B is set to A and A to B. Tried binding A to X and the same thing happened.
I can change them back and they work again. The point of rebinding them is so I don't end up worrying every time I press A or B.

[Gene]

Deleting that .cfg did it. I can set A to A and B to B and they function.
Thanks for the help.