Been getting this periodically (more and more lately) for the last several years.
Restarting and/or logging out doesn’t fix it. Moving the project to different Harddrives, changing the cache, clearing the cache, changing GPU (well any settings really) settings.
I think I figured out how to fix the issue, though. Export a layer to the clip board and paste it into Nuke.
Really weird, but doing that has fixed it the last 3x’s. I spent the better part of a day trying to sort it out last week with no success.
The hanging is basically click on a knot, wait a full 3 sec, unclick is 3 sec, switch layers is 3 sec.
Once you pick a knot or group of knots, they are generally faster (still slow) to manipulate than it is to switch.
Doesn’t seem to affect tracking speed.
Don’t know why exporting a shape fixes this. Hopefully it’ll help someone track down the bug.
In the deprecated state, Mocha is unusable out side of basic tracking.