Magic School

Multiplayer in Magic School is broken.  My friend and I went into the fire room and proceeded with the challenge.  When the 2nd player hit the dragon, no other dragon spawned.
1st player hit the dragon and a 2nd one spawned and they hit that one also, but no other dragon spawned after that.  1st player kept falling and after the time -5 seconds for each fall, it never despawned us out of the challenge room.
Please fix multiplayer for Magic School