My Bad it’s been a minute and a long day.
Get player Controller → Set Control Rotation
Don’t have to replicate this at all. You’re simply telling the controller to change its rotation which is normally done with mouse pitch/yaw. It’ll replicate over to the server automagically.
Edit …
If this doesn’t work, then revert back to my previous and then in character class add a switch has authority[remote] to the tick event before “Location”.
I’m seeing the code work on the server. But on client it doesn’t which usually means the server is fighting and overriding the client change… Servers running the same tick functions calls as the client. Thus the need for the switch has auth node.
Hit me back with results.