Hey I think I've discovered a fairly big bug that has actually prevented me from progressing as of now.
Apparently, after the Villa infiltration, if you happen to save at one of the one-time-use restoration points, it puts the game back into the state of infiltrating and won't let you save on that file again.
This wouldn't be too big of an issue... if I wasn't a bit dumb and only used 1 save file. Since I did, and I saved over it with that one use point, I have broken the save feature and can't anymore. Great work with the whole rest of the game otherwise.