When A Structure with trapdoors is loaded from a structure block, the orientation of the trapdoors respective to the rest of the structure is incorrect. This occurs only if the structure has been mirrored, rotated, or a combination of the two.

Attached please find a Zipped world folder for Minecraft on Android v.9 that’s contains transformations of a test model that demonstrate this behavior.

Edit: I apologize, This is for MCPE, I forgot to check the Project Feild.