Matte Doesn't Match Mocha Spline

Having bizarre errors in tracking with Mocha in AE.

I did most of the tracking spline of an object in Mocha. I had to go back at various spots and edit the spline points to track better.

Once I did that, all hell broke loose. Suddenly at odd frames the spline points scattered all over the place. I did not touch them. I merely moved points of the spline many frames away from any edit.

So I go fix them, but that then causes other frames to have scattered spline points… It was then I checked the matte in AE and it at times jumps around, even though when I go to Mocha there seemed to be no problem with the spline.

It’s a fool’s game to continue as every fix yields new problems. And unfortunately this is a complicated rotoscope that I spent hours on and don’t want to lose.

So, how can an edit in a spline affect the spline 100+ frames away?

And back in AE it looked like maybe the matte did not match the spline point for point, accurately. That could just be those points in Mocha jumping around, tho at the time I went to AE those points were likely fine.

Thanks.