trusteft: Are you sure? According to the change long the bug was fixed 3 years ago?
This bug was never fixed. I just got it myself at the final masked man scenario mission. I'm using version 1.5.
And I read a thread where the devs talk about this bug in emails from them that were quoted on the Steam forum for this game and that the devs promised to fix; those comments were made in 2018 but yet they never did fix this bug of April 2023 when I'm writing this post now.
This game is literally a scam since it has a game-breaking bug that the devs years ago promised to fix, yet apparently they never will actually do so.
EDIT: I just tried to load from a quicksave which was from the end of the mission before the final masked man mission. Then I beat that second-last mission again, then I was able to start the masked man mission since my new autosave replaced my old autosave.
However, then I exited the game and when I tried to load from the checkpoint, the final mask man mission again failed to load.
And it also made the problem even worse now, because now
none of the campaigns will load for me, and they
all give me a black screen instead.
So yeah, I now quadruple-down on my claim earlier in this post that this game is a giant scam!