Ladder,Brewing Stand and Wooden Door won't work in some situation

We can't break Ladder between blocks.
how to fix : Remove which of the two blocks.



We can't break or use Brewing Stand under a block.
how to fix : Remove the block above the Brewing Stand.



We can't break or close Wooden Door opened between blocks.
Attention : We can break closed door between blocks.

This problem is complicated a bit.




Situation A :
We can break and close the door
when you touch the upper half.



Situation B :
We can break and close the door
when you touch the lower harf.



Situation C :
We can close the door correctly
with Button, Pressure Plate or Redstone Torch
when the signal is turned off.
Then we can break the door.



Situation D :
Strangely, We can close the invalid door only by putting Redstone Powder beside it.




how to fix :

1. Remove which of the two blocks.
2. Turn the signal on with Button, Pressure Plate or Redstone Torch, then turn it off.
3. Put a Red Stone Powder beside the door.
4. Break the block under the door.

I recommend always using pressure plate or Button to you.