Thanks!
I already figured that error out, everything works now, happy about that.
Regarding the default VR Pawn set up: Left Controller and Right Controller are actors of the MotionControllerPawn. Or at least they are not listed in the components list, but are actor reference variables of the BP Motion Controller type.
I tried to substitute the Get Actors Of Class by a cast. However, it still seems like Left Controller is stuck on the first spawned location and doesn’t update. Is there something like a tick I forgot?
New bp attached: