I don't understand where is that bug appearing. To enter the second room you should scavenge on the main room, then when you press SPACE near the door, it starts another set of options and then teleports you to a new location.
The game, in fact is playable until you reach the shelter and activate the power supply, far from that you can visit the previous location and explore the hospital and nothing else.

I suppose you have not reached those.

Thank you for playing and for your comments.