Frozen Object Forge Glitch

So I just spent all night creating a grifball stadium only to find it utterly ruined by a glitch. The glitch made a bunch of random objects I deleted previously respawn and freeze. No matter what I tried to do to fix it- select, delete all objects, select all type of the object- the objects never went away even after the game. Does anyone know of a way to fix this?

I think I’ve had the same problem as you before, I just saved the map as a new name, went back into it and the objects could be deleted. Hopefully this helps.