I use my external footswitch the same way. After updating the firmware, B2 plays the outro for some songs but for other songs, the screen turns red and says “Outro” but it plays a few more hits of something before it stops. A couple of times when I hit the outro button (B2) the screen flashes red and then goes to one of the previous green parts. I quadruple checked the pedal settings- no luck.
If I understand correctly, I should try reverting back to version 3.8?
I pasted this similar issue here from another thread/topic:
Bug in footswitch stop
1 / 2
Sep 14
I think I have a repeatable bug in the beatbuddy.
FW: 3.9.9.4
Footswitch+ (left is pause, right is stop)
Load a song with an outro fill, start, transition to a second loop, use the right footswitch to stop, outro loop plays and the song stops.
Load a song with NO outro fill, start, transition to a second loop, use the right footswitch to stop, it shows ‘stopping’ but song transitions to next loop. Press right again and the song now stops.
If you don’t do a transition (long press on main peddle) then the right switch stop works fine, if you make a transition then the stop button first performs a transition (showing ‘stopping’ but the peddle carries on playing) and then on second press it stops.
S.