so ive had several bugs when playing as the forgotten, but the most aggravating is that in my last two playthroughs the main quest abruptly stops after the level4 infiltration action mission, and never gives me the next quest. does anyone have any ideas on how to solve this? I asked on the steam forums but nobody appears to have encountered a similar bug/found a solution.

Did you wait for to reach infiltration Lvl 3 after starting infiltration ? If i remember correct it was necessary to wait for...