Well, when I load my saved game, the game immediately crashes, so I couldn't tell you exactly where I left because I don't remember right now when nor where I saved the last time. Also, I always run the game as admin, so the writing part shouldn't be the issue (at least not because of the admin permission).
However, I tried the cheat menu (very useful tool btw), and I tried selecting Junction, Sector 1 and Sector 2. The cheat works well, and I am able to load the three levels, but a couple of times, when I loaded Junction and then Sector 1, the game crashes. Others, when I load Sector 2 and then Sector 1, the game crashes. Basically, all the levels are loading when I select them from the cheat menu, but is only Sector 1 that sometimes, in one way or another, makes the game crash (a couple of times the game didn't crash when I first selected Sector 1).
Unfortunately, the cheat menu doesn't help me to continue my save game in some way because, for some reason, I can't talk with anyone after this, so if I need some clue, item or something, I'm kinda stuck. The only thing left is to start the game again.
@Erick194, whatever other thing you need for me to check, just let me know through here or dm :)