I'm kinda sad that other game braking bugs are not getting this kind of quick fixes like the stuck on the first loading screen or the one where you lose the ability to build/interact with anything in the mission.
Loading issues can be a complicated area and a variety of things can be impacting this. In terms of losing the ability to build/interact i cant recall seeing many threads on that? If im wrong here by all means feel free to share any clips/post that i've missed. Internally this could be known but something im not directly tracking.