Xbox One S
Playing today I had a random join my game, I traveled up north a bit, near middle of map, and he went to the Skorken bunker safehouse which I didn’t have unlocked. So I headed over to it and he messaged me saying he was stuck in a room and couldn’t leave. So I put down a radio and he joined me and we did the mission to unlock the war board. Power and generator was turned on everything was good. Then later I fast traveled back to that safehouse in the bunker, all power was off and I was stuck in that room. So I’m not sure if this is a known issue but basically the power turns off after you leave which locks all the doors again.
Let me know if anyone else has this issue!