I’m bumping this thread because this bug still exists. In my case, I’m setting the player to Swim when entering the swimming volume. The bug is that it sets ALL players to swimming, even if they’re not connected (connecting clients have their movement mode set to Swimming over and over).
So the bug is that when the Movement Mode is changed, it’s affecting ALL clients in the game. I’ll submit this later, but it’s really easy to test for yourself, I got this bug happening on a new blank project.