If you've done anything moving the anchor point, any change to anything else after that causes the anchor point to move relative to the change you made. Which is maddening behavior. So if that anchor point is moving, my guess is you moved the anchor point at some point, then added movement to something afterwards.
Thank you. I certainly did adjust the anchor point, expressly to achieve the scale motion I desire. I thought that was the right tactic, and I use it all the time, normally without messing with large scale changes or especially un-uniform scale keyframes. However, the anchor ratcheting only occurs at large incriments of scale changes, which makes no sense to me. Do you have any more insight on this topic?
That anchor point behavior is for me a pain point. It confused the heck out of me, and I had a series of posts a year or so back with I think both @jstrawn and @DaciaSaenz involved. Maybe one of them could pop in and help. I'm still confused with anchor point movement.
There is a long-standing bug with anchor points that I've been clamouring to get fixes for a while now where the relationship between the anchor point and the shape gets really funky and starts doing all sorts of unexpected things. Unfortunately, its not an easy fix and could potentially break existing work so here we are.
The best workaround that I know of is to make sure to set the anchor point before making any changes to the scale or rotation of the shape. You can change the path itself (which is different than scaling under the hood) and re-adjust the anchor point, but try and get that anchor point locked in before scaling.
Please let me know if that resolves things for you. If you're still seeing bugginess after using the workflow above, would you mind sending me a video of what you're seeing as well as the Mogrt itself?
Thanks so much and apologies for the inconvenience,