Client see server pawn jerk when rotating only


I work with 4.18 for a while and all works fine here but I have to convert my project to 4.21 because of some things from marketplace not working to earlier version of the engine. In 4.18 no problem at all, in 4.21 I have a strange issue:

The client see smooth movement like forward but not the rotating movement, the rotation of the server pawn it’s like the server refresh the rotation state 2 time by second for clients… All look smooth on server view

All necessary is replicated well, I don’t understand What happen.

I have tried rotation by Add Controller Yaw/Pitch/Roll Input, Add Torque in Radians, Add World Rotation… all have the same result.

The forward movement is affected by Add Impulse

Thanks for the help