Baking Compressed Animation

Hello everyone,
Unity version: 2019.4.23f1
I got a problem with glitching characters after unity compresses my animations..

I am using Optimal compression with these settings:

Most of the time everything works well. However, once in a while random character starts glitching like this:

I go to the file reimport that specific fbx, or change RPS numbers, hit apply and usually the problem gets fixed.. But it does resurface at random if someone needs to manipulate fbx, or when compiling build for gameplay..

So.. my question would be:
Can I somehow lock / bake compressed keys or maybe there is some other way that I can evade these random occurrences? I really would like to evade possible need to unpack fbx'es

Big thanks in advance for the answers or pointers to the solution if this question was solved already!