MCPE-8995Adjacent north-facing trapdoors in vertical position all change state when any one of them is updated
How to Reproduce:
Place trapdoors that are closed in the north position (north is the position where TNT moves when it ignites) and make sure that they are vertically in the same row and break a block by one and the whole set of trapdoors will open.
Note 3
Created Issue:
Trapdoors placed in North Position all open when one of them is updated.
How to Reproduce:
Place trapdoors that are closed in the north position (north is the position where TNT moves when it ignites) and make sure that they are vertically in the same row and break a block by one and the whole set of trapdoors will open.
Note 3
Added Attachments:
Changed Summary:
Trapdoors placed in North Position all openwhen one of them is updated.Adjacent north-facing trapdoors in vertical position all change state when any one of them is updated
Added Assignee: 
Daniel Wustenhoff
Daniel Wustenhoff
I cannot reproduce this on Samsung Galaxy S4 Android 5.0.1 MCPE 0.11.1 (the June 11, 2015 version of 0.11.1, yes there are two 0.11.1s). AMAN4700, you need to give more details on how to reproduce your bug.
In creative and survival modes I place a vertical column of three trapdoors that were attached to (pivot from) blocks north of them. With all trap doors in the closed position (unchanged from when I placed them), I broke a block that was adjacent and east of the upper most trap door. None of the trap doors changed state.
I tried again with vertical columns of 3 trap doors attached from the other 3 compass directions and broke a block or placed/removed a torch adjacent to the upper most trap door and again, none of the trap doors changed state.
This is what i mean. Added some screenshots for you to help you understand!
When they are in the vertical position i call that "closed"
Confirmed on Samsung Galaxy S4 Android 5.0.1. Sorry that took so long. I was confused.
This bug only happens to adjacent north facing trap doors that are in the vertical position. The trap doors can be placed above below, left or right of eachother. Any number of trap doors can be placed in any order and set to the vertical position in any order. Trap doors in the closed position break the chain. This does not affect trap doors facing other directions.
Cleaning up all old issues, please reply if affects 0.12.1