My PS4 controller was working flawlessly until I accidentally selected 'Forget Bluetooth Controllers' while trying to pair a different controller. Now I can't get it to connect anymore. When I select 'Pair a Bluetooth Controller' the PS4 controller shows up as "D0:27:88:34:63:6B Wireless Controller" but every time I try to pair it I receive the 'Unable to Pair Controller' prompt. Holding the PS button and the Share button doesn't seem to work anymore. I've also tried resetting the controller by pressing the button on the back, but that also didn't work. Is there a configuration setting somewhere that will remedy this issue? Any help would be much appreciated.

I figured out the issue. The problem was definitely on my end. Apparently my power supply was dying. I just picked up a new one and now the sound is back.

I still can't seem to get the sound working. Recalbox was functioning just fine before the 4.0.0 update.

I updated Recalbox, on my Raspberry Pi 3, to version 4.0.0 the other night and somehow the entire system lost sound. The OS music is gone as well as all in-game sound. Has anyone else had this issue? Any help would be appreciated.