I have some automatic ovens that I know that I move with pistons, the fact is that a few have been bugged as if they were bedrock I cannot interact with them or go through them or break them or put blocks in their place or move them with pistons but if I can put or breaking blocks through them as if they were not I have left the world and re-entered but still I have made a copy of the world and not even the tnt works I could only remove them with commands which means that you can not directly do anything in that area or fix anything is like having a bedrock.