Hi all I want to share my problem and try to find a solution.
In short, when trying to export a model with animation, there is a bug where only one part works and other parts are not detected. I have already tried removing leaf bones, All actions, NLA strips, etc when exporting. Nothing works.
This is what it should look like in Blender
And what it looks like in studio.
I would be grateful if someone has already encountered this problem and knows how to solve it