How do I respawn my player without him stuck?

I have been creating a game with lives. Every time the player dies he loses one and it is game over he loses all three lives. However when I set his position to (x,y) he simply sits there and cannot move. It's like he's stuck mid air. I cannot reset layout because that resets all the variables including the lives. I tried choosing 'stop loop' once he had been placed but he still sits there mid air. FYI I have it so that when he hits the border or something that will kill him it subtracts 1 from 'health' (global variable). Then I added 'when health is equal to '2' set character x,y to (whatever it is)'.

Any help would be greatly appreciated, sorry for not knowing the fix.

On death do you disable the platform behavior ?

If so, enable it again on respawn.

Consider posting your project capx, it makes it easier to investigate what may be going on and how to provide you with an accurate answer.