Bug Discovered

Me and my trio were looting inside the infested building on perimeter around the 18-19 minute mark, when suddenly the entire building locked around us and we couldn't get out. We believe its because someone joined the game around the 18 minute mark with the nucal ID quest because we saw the icon spawn where the button is, and we saw the key, which locked the building around us. We all lost full blue and green kits. Linking our bungie IDs bellow. My friend has a clip for review, I will also link my discord. 

Bungies:
BblackHat115#7383
FordFrikinRanger#7851
PepeTheHorse#3112

Discord: bblackhat115