Acacia trapdoor texture isn't consistent when flipped

When flipped, the “hatch” part of a trapdoor flips onto the other side of the trap door and isn’t consistent. Attached are two pictures of the same trapdoor, but flipped. You can see that the hatch part of it is attached to the wall behind it, which is expected. But in the second picture, the hatch is down, which would be consistent for a trapdoor that flips down.