There are two Doors blocked by small objects near and in Nadezdhino.

#1.
First one is south of Nadezdhino.
When you open the door, there is a floating small object (looks like a doorlock or something) that blocks your movement when try to enter the building trough the door, in standing or crouching stance.
You can still enter the building by crawling (tested).
And there is also a misplaced trash can that clips inside the building right at the door.

#2.
Second one is inside Nadezdhino.
The doorstep is blocked by a misplaced trash can.
The building is still enterable by placing yourself between the open door and the trashcan and then stepping over the trashcan.