Seamless travel loading problem

I am making a multiplayer fps game. Server and clients connect to eachother succesfully. But when server opens the level, minimap gun doesnt load and hud widget doesn’t work properly. When i print health value, the value is true and 100. But in the hud widget it is 0. Which char contains the health value.

I used seamless server travel when opening the level. The bluprint code is in game mode. Also i am using advanced session plugin for to connect players eachother.

What can couse this problem and how can i solve it?