and this problem look recurent
here another post were someone posted a multi player platform test
viewtopic.php?f=147&t=100256&p=779403&hilit=multiplayer#p779403
I tryed the game and here what i get :
I think its a Construct bug cuz as u can see in the first video i sended when i disable input prediction all work fine (but the latency is huge)
Im making a clean capx if u really need it but its look that they is a problem bewteen platform colision and input prediction
Here the cleanest capx i can make