[UNet] Network Animator transition stutters

Im currently trying to make a little lan multiplayer game. I want to sync the animations of the players and i thought Network Animator would be the best way to do that. But theres one problem... for example, when the player starts walking the transition/crossing between the idle animation and the walking animation stutters. The main walking animation is smooth. Im using some blend trees in the Animator, thats pretty much all. I also have a Network Transform component attached to the Players. Its all working fine in singleplayer. The crossing/ transition stuttering only happens in the multiplayer mode.

An video which shows the stuttering/jittering

Does anyone know how to fix this ?