RetroPie with 8bitdo Pro Can't Connect or Configure

[zetazot]

I have a Raspberry Pi3 running RetroPie 4.2.3 with Emulation Station V2.1.5RP. I have 8bitdo's NES30 Pro and FC30 Pro bluetooth controllers. I am able to fire-up PPSSPP without a problem and navigate to the manual controller set up menu with a bluetooth keyboard, but PPSSPP won't take any of my 8bitdo's controls when I press them.

Any suggestions out there?

Thanks!