I know that if an enemy is alive in front of a door, it won't open or close (it's a fine way to tell if an enemy is actually dead or not), maybe there were too many enemies nearby??
Somehow flashed the memory out of the zombie that opens the door usually.
I've had something similar happen. First hunter encounter as Carlos, tried to run by and open the door but the door had no interaction point. I was streaming from my console at the same time and had the auto save icon flashing for a good 10 minutes.
Is this on PC? Because I know there are some issues with loading auto saves while using the overlay that cause interactables like doors to become impossible to open
So I just got my first sub one hour, and this actually occurred again for me during the run. I decided to keep it going as I was super tired and just wanted to finish the run. I ended up getting a new PB though. I’m assuming this just occurs when the flash is too close to the door and somehow flashes the “door” zombie
The exact same thing happened to me on Ps4 while i was doing a run. This must some random bug with like 1% chance of happening(?). It never happened to me again.
You can flash the zombie behind the door, but I have not had him lock the door like that tho for me he had still bashed it down but was in a stun state so I thought it was just a random occurrence. I usually flash early like how you did. The stunned behind the door bug that you got I guess occurs when you get into the final room with the lockers and stun early after entering the room itself