Hello Leh Car ! Thank you very much :-)
This bug is driving me crazy. I never knew how to fix it and it is rare. Apparently it would be related to the player's set. But since everyone never has the same one, it's complicated to know what's wrong with the set of players to whom it happens. I suggest you try to launch the game on another browser. Come and see me if you have any other questions, you are welcome. I hope it will work.