What do you mean by “completely”?
By “that way”, do you mean more than one layer with an animated transform mask on it?
I have a .kra file with three layers that each have an animated transform mask giving three ‘characters’ moving around on the canvas. It’s the second half of this animation:
Paint in haste, erase at leisure
There were some crashy moments at a particular and very specific stage but not during rendering.
I also have a working project with far more complicated arrangements of multiple animated transform masks.
That is bad but if you’re using 5.0.6 (and in all cases of crashing), you should try the latest nightly builds.
I’d suggest that you try the 5.1.0-RC1 at the moment, available from here:
First Release Candidate of Krita 5.1.0 is out | Krita
Formal bug reports are made here (sign up and login needed):
https://bugs.kde.org/
For a complicated situation, it’s better if you make a topic on this forum in the ‘Artists Fedback & Testing’ category for initial discussion. Please give Layers docker screenshots and links to test files.