Cannot record software drums in GarageBand 10.2.0
I cannot record software drums in GarageBand 10.2.0. I have downloaded the plug-ins ‘Drum Pro’ and ‘Beatfactory Drums’ and they run fine within the program. When I hit the snare drum for example I can hear it and I see a signal is being sent to GB as indicated by the pulsating volume level light. However when I hit the record button the playhead starts moving, but no recording track is created. Does someone know how to fix this?
GarageBand 10, iOS 11.1