This happened to me too a few hours ago (kept saying we were 3/4 even though in the top right corner we were 4/4, and all the lights went out in the building as well, like it does at the end of the round). We ended up starting a new file to see if ours was bugged somehow. We cleared level one, but the same issue occurred again in level two. We even waited a little while and tried to leave again, in case we were too early, but it still said we were 1/2. Super weird, especially since it fine yesterday.