Hi PaQ, thanks for reporting the bug with the example file!

I can repeat the problem over here. It looks like it is related to the mechanism that replaces a "perfect" ellipse with a squishable one after you move a point of it.

One workaround just for the moment is to turn on the points of that profile you want to adjust with history, and move any point of it by a small amount before doing the sweep. That will avoid the "convert from exact ellipse" from happening during the history replay and avoid the bug.

I think I should be able to fix it up though, I will take a look later tonight.

- Michael