Another problem bugging my life.
So, I was cluttering the rooms with some ordinary stuff, but the "Don't Havok Settle"d ones just don't seem to keep the promise, falling down like on Meth. Particulary, they were daggers and arrows in archery targets - when you enter the game, everything falls down.
Am I doing something wrong? I checked the "Dont Havok Settle" option everywhere necessary, also the objects are not close to each other (not coliding). Also, the Havok Simulation in CK works like a charm, everything seemsfine. Only the game itself breaks it.