I was going to post this in /c/retropie but it seems they haven't had any activity in 8 months. So I figure here is the next most appropriate place.
I recently brought out my raspberry pi, and started taking care with it. I downloaded some new themes. I put a hell of a lot more roms into it.
One problem is, if I try to connect a controller, I can map every button except LT and RT.
At first I thought it was because I was using the 8 Bitdo Switch arcade stick (which also has the ability to connect to PC/Linux/Raspberry Pi.
I didn't understand it, but I thought "Ok. Maybe something about it being an arcade stick means I can't use those two buttons on THIS stick. Whatever. I'll just use a different controller.
So I pull out my WiiU Pro Controller......SAME EXACT ISSUE.
So now I don't know WHAT to think. I WAS going to connect it to my switch, and see if I could do a button test on that, to see if it registers the inputs for those two buttons, but now I'm not sure that's needed if it's had the same issue with two unrelated controllers with two different form factors, made by two different companies.
Is this a common issue with an easy fix, or has life once again said "FUCK YOU Lost_My_Mind!!!" ?
Bluetooth, and I'll check again when I get home, but I'm almost certain it was already on x-Input.