[1.7.10] How to stop slowly moving down while world is loading?

[MCenderdragon]

I have created my own dimension and all work fine. But when I first enter the dimension, the chunks are loading and the Player is slowly moving down. So far nothing new, but if the player is moving down, he is inside a Blocks when the chunkloading is finished.

And then the Player fell to death, because the top Block layer is only 1 Block high.

 

Is there any event ore something like that, using to reset the player position ? This would fix the problem.

 

in addition I think this is only a Client problem, because this also happens on Servers when chunks are not loading.