@Dinsdale Your screenshot shows an error that happens during pairing in the Bluetooth setup - possibly a timeout during the process. Re-connection is handled by the OS, there's no RetroPie script involved afterwards - so I don't think that's the problem.

EDIT: you can try and pair the controller manually - see https://approxeng.github.io/approxeng.input/bluetooth.html, the Pairing with Bluetoothctl section).

@c_death Glad you got it figured out. I got mine figured out as well. I had to follow the instructions here:

https://github.com/RetroPie/RetroPie-Setup/wiki/Bluetooth-Controller

Under the Keep bluetooth scanning part I had to add the line "sudo hciconfig hci0 up piscan" to sudo nano /etc/init.d/rc.local

Now it picks it back up every time it goes to sleep.

Nothing I know of - and I don't have one of these controllers. I have a real PS3 controller which works well.