Deleting Geosets with out Crashing the Game?

The topic says it all, How do you do it? Because I desperately need them.

delete any geoset animations with "none" in their geoset field. Thats what crashes the game.

can you show me an example? sorry if I'm demanding, but I made basic body parts out of standard primitives and merged them to a footman, but each time I delete the useless stuff, they crash the game.