@MWGemini
Thanks for the help. I'll try with a USB wired gamepad when I get back home later this week and see if it works.

@wilburburns

IE: I want the Alexa audio output to go to a Bluetooth audio device, or a directly connected 1/4" jack speaker, and all of the Kodi/RetroPie output to be pushed out through the HDMI port.

Kodi uses it's own audio settings so if you want to use the 3.5mm audio jack with Kodi, you have to go into Kodi's Audio menu and change it to your 3.5mm audio jack (or both HDMI and 3.5mm).

Hey guys, update, I think the issue was a bad rip.

I came across a different ISO and it works correctly now.

I will be keeping this in mind for the future.

Thanks all!

@herb_fargus I tried it but doesn't work: Pi3 stuck on rainbow screen after a kernel downgrade.

Had the same problem with retroarch emulators. Solved it by using joystick selection:

https://github.com/meleu/RetroPie-joystick-selection/blob/master/README.md

In mupen standalone you can define controllers via their device name, so they won't switch around.

By the way, I'm using v0.37b5 ROMs on a v4.1 build of RetroPie (for RPi 1) in the mame-libretro folder in order to address an "insert coin" issue I was having with the select button on my XBox 360 wireless controller. The solution posted here...

https://retropie.org.uk/forum/topic/879/mame-and-coin-up

...is what corrected my problem.

Anyone else have this problem where the controllers just won't connect at all?!? Any other suggestions for my friend?

That's great thank you! thanks for the info.

I remapped the buttons and it worked fine but like you say, it kinda screws up the other settings for up,down,left,right....so....I've reverted back to up and down on the games list! thanks for the heads up tho, really appreciate it.

@darkblaster77
Cheers matey
Much appriciated

Same thing here. New Wii U Pro controller with updated RetroPie on a Raspberry Pi 3.

Sorry, forgot: I am on RetroPie 4.1.8

Thanks guys! I'll give it a try!