Cinema4D bones animation issue

Hi guys
does anybody use mixamo.com and Cinema4d for animationg characters? I've got the following workflow with the issue:

1/ T-pose mesh downloaded from mixamo.com (let's say ybot character for this example) -> works fine after importing to unity
2/ Animatioin bones downloaded from mixamo (without skin, just bones) -> animates fine afer importing to unity
3/ When I open animated bones in Cinema4D and resave it, the animation DOES NOT WORK in unity then. This is very strange since all the bones are named same way, it is basically just resaved.

I need to change some mixamo animations in C4D and I've got some skins already imported in unity so this is quite essential for me. I guess the problem might be with avatar linking but not matter which option I choose in unity during asset import, it simply does not work.

See example unity project plus .fbx files here https://we.tl/t-Gs7W9A5kGl

thanks for any help in advance