I've created crashing blueprint

I’m trying to create a push/pull object(pillar) in 3D third person game which have some movement restrictions. I made a blueprint with an object and physics constraints components. After few fixes I figured out that is better to try to keep object in stationary state and toggle it to movable state before interaction. After click on stationary state ue crashed. And I can’t open blueprint, because it’s always crash on opening.

Now I have a suggestion that I shouldn’t add physics constraints to stationary objects. BUT I believe that UI of the engine should prevent user from making such kind of traps) (I don’t now yet how to fix .uasset files. Have to revert a lot of important changes(thanks god, only in one bp)