Animator blend tree velocity doesn't sync

Hi, I think Unity is buggy on this. I have a character with animator networking on it. animator wich contains blend trees, bool and float values for blend tree's velocity (for walk animation). The problem is that the velocity doesn't synchronise with the other player. this is resulting that each players can see their own walking animations, but not the ones of the other player. But every bool are sync correctly. Is there a way to solve this bug ? For example by re-writting the animator networking ? Thanks for any help !