I made a blueprint for a door that swings open, and it works fine. After making sure the first one worked, I located the blueprint in the content browser and dragged a new one into the editor window.
The door mesh appeared, but when I switched to PIE mode, it wouldn’t open. In the details panel under Input I found the attribute “Auto Receive Input” and I set that to Player 0 and input priority 0. That got my new door to work, so I assumed I fixed the problem until I walked over to my other door and tried to open it and it wouldn’t budge.
There are a lot of different ways to make a door open via blueprints, you’ll probably need to be more specific. Maybe try posting a screenshot of the nodes that are driving your blueprint.
Unless we know how you implemented the door, its hard to give a specific answer. However, if you are using Key inputs (ie you press a certain key when in proximity of the door to open it), make sure you disable ‘Consume input’ under Blueprint’s input properties.
On the other hand if your are simply opening the door when you get near the door (using a volume) then I will need to see the relevant part of your BP.