Instrument track suddenly stops playing sound in Pro 8

The track in question is the 1st bassoon from Berlin Woodwinds, loaded as multis in Kontakt.
The track is not muted anywhere, and there is velocity- and modulation data throughout. I haven’t touched expression, so there should be no issue there. When I play, play back, or edit the track,the sound is suddenly gone from the track, even though all the data is there. If I restart Cubase or add a new track and copy-paste the MIDI data, it goes back to normal, but it doesn’t take long before the sound is gone from the track once more. I’ve had this problem before, so it’s not specifically an issue with the bassoon.

Have you opened the “mute” automation lane and actually verified that there is no automation?

Regards. :sunglasses: