Disabling pattern tracker causing instant crash

I'm using Fusion Studio for Mac.

I'm tracking for a match move and have 5 pattern trackers on various parts of a parked car. The tracking confidence is near 100% for all but one of the pattern trackers. I'd like to disable the good tracks and focus just on that one but when I click the check box to disable any of them, Fusion instantly crashes.

Have you tried disconnecting the input for the tracker or replacing it with a BG first before disabling the track?