I'm sorry to hear this is happening. This cannot occur in the next release. Partially because there is no "left side" to the door into the Haunted Mansion from the outside. It appears to be a wide door, but it will only open when you try at the middle. This also applies to the large house that Ben and the bunnies explore and then live in for the last part of the game.
Can you post a screenshot of where this is, so I understand exactly which place it applies to?
It's also possible that this is happening due to the game engine trying to go above 60 fps, which is a known issue. The update has a fix already (MAC_High_Hz_Fixes plugin), but all I can suggest if this happens in the current release is to save often, quit and reload.