I've been experiencing some strange behavior with doors. On both my realm and one of my friends realms, we can't place doors in certain places. I build a 2 tall 1 wide space and place a door, but the door flashes and then returns to my inventory. If I put a block in the place I'm wanting to put the door and then put the door on top of it, the door stays. However, as soon as I remove the block and then place the door, the door flashes and then goes back to my inventory. I try placing the door on blocks around where I want to put the door and the same thing keeps happening. When someone else tries to place the door, the same thing happens. I've tried changing the block type I'm placing it on, but that doesn't change anything. I've also tried in both creative and survival with the same result.