When a dripping chamber trapdoor spawns HERE:
https://i.gyazo.com/d8f706edec5c5a6a80b9d1feea397c88.png
It is not actually accessible (can't be opened). Would advise moving it back a little.
I think its because its facing the wrong way, the hindges are away from the wall, meaning the entry point is inside the wall.
Hopefully fixed.