3D button event response failure on server in VR Multiplayer

My project is multiplayer VR game, and I’m using client server mode. When there are two players, the server’s player cannot respond to the click of the 3d button.When the client exits, there is only one server, and this time it responds. Please help me!!!Thanks!!!

I have tried to create widget in player controller,set input mode as only in game ,in game and UI.
But all of these are invalid.