Water Volume BP does not work in multiplayer game

I’ve tried to get a water volume Blueprint to work for days now in my Multiplayer game.

The “Pelvis Sphere” is a simple Sphere Component attached to the character. As soon as the sphere touches the water, the character enters the swimming state. So far everything works fine.

Now if multiple players are swimming in this volume (or any other volume) and one of them leaves the water, every player on the server is leaving the swimming state and entering the walking state, regardless if they are in the water or not.

Any help would be appreciated.

Thanks in advance.

A default PhysicsVolume with the “Water Volume” Variable set to true seems to work. Is there any way to attach a blueprint to a Physics Volume or the other way round?

did you ever find the solution