Midibox CV stuck notes

[whomper]

When running my Midibox CV with some sequence, the channel that is playing is stuck on the highest note (127) with the gate in open mode, and as the notes are coming in, it tries to play them in between it defaults to value 127 and an open gate mode. If I stop the sequencer, I hear the constant high note.

If I change to a different channel, all is well for a random time until the problem manifests itself there as well.

Only remedy is to restart the Midibox CV.

Any clues as to how to resolve?