(Critical Bug) Map Generated differently for each player.

[Monkey D. Luffy]

I've created a multiplayer room, and someone joined my game, but they started walking through walls. Afterwards, they suggested the issue might be with my room, so they created another room and invited me. When I joined their room, there were many traps on the ground, but I couldn't trigger or even see those traps. It appears the map was generated differently for each player. This is a critical bug; please fix it.