Please help me set up the Tracking Hands replication!

I have very little experience in creating multiplayer games. I'm pretty much a beginner, so forgive me if I ask the wrong thing!

In my game, I want to use hand tracking, not controllers. If I use the "OculusXRHand" component, the bone movement is not replicated. So I created a custom hand and took all the finger rotations from the oculus hand tracking library and animated my hand via blueprint animation.
But when multiple players are connected, each sees yourself hand movements which are copied for all other players.
To get data about the movement of the bones I use "Get Bone Rotation" there is an input parameter "Controller Index". The default value is 0. Maybe I need to take the index of each player separately?
Where do I get the controller index?
Or what am I doing wrong? Help!!!