Shadow Problem with Doors

I understand all doors do this when you flip it the other way, I believe one of the doors is actually in open position. I have found nothing to fix this.

Does the issue persist if you reload the world? It looks like the normals of open doors are broken (as @Sheeba mentioned, the doors on the right are actually in open position)... of course this shouldn't happen, so it's indeed a bug

have this problem too, reloading or restarting fixes it sometimes but it comes back regulary.

https://www.youtube.com/watch?v=MqKdpwUXc0s

at 0.34

this happens to any doubledoors - somtime its at the left house, sometimes at the right house.

same happens to posters when you flip them sometimes it looks good sometimes the posters are very dark.