Collision suddenly not working

Hello! Ive done some buttons that the player can step up on to activate events and so on (like switches). The buttons are destroyed once the playuer steps up on them. This has worked very well for over a month (the last 1000 times I tested it), but now for some reason they arent destroyed once I step up on them. I use hit event in the level bluebrint and casts to Player (ThirdPersonCharacter). If I move the buttons a bit, they work as before, but not in the same position. What the heck triggered this problem and how do I fix it?