Same thing happened on all of my playthroughs. It got to the point where the music in the house was so loud that I actively avoided going there any more.

It just got an official release today so it'd be good to know if anything's actually been done to fix the save issue before jumping in.

Managed to finish the game with the RC build, but I rushed to the end and didn't participate in any insurgent assaults, and deliberately avoided things like taking extra vehicles or dumping gear on the ground. The saves kept getting larger, and I have a feeling that if I spent more time exploring things would start getting wonky again. I was already starting to experience similar issues that I saw late in my previous run, such as furniture objects taking a long time to load and popping up after doing fast travel, or the black screen taking way longer than usual to fade away after resting. Performance when starting the campaign and when getting closer to the end is like night and day.

I'm at 8GB of memory, which might explain why mine is crashing at a smaller filesize compared to your saves. 32-bit mode didn't have any effect, unfortunately.

Here's a screenshot of my save history I started keeping once I noticed things getting unreliable every so often. Autosave 8 is the last one that will load without crashing, every single save after that causes the game to crash. Even though some of the later files are smaller than the 169MB of the last working save they still cause the game to crash on loading for some reason. I had some later ones but I was deleting them as I was trying to load them and gave up when I realized I was having a 100% failure rate.

I'm having the exact same issue, right down to the error codes (0x0000DEAD, 0xC000041D, STATUS_FATAL_USER_CALLBACK_EXCEPTION, and Too Many Virtual Memory Blocks Requested) as well as being at a similar point in the campaign. Saves started acting up around when I started getting tasks to assist insurgents, so I started manually backing up the autosaves since they were getting unreliable. Now the last 20 saves in my campaign cause the game to crash - the last working save was from right after I destroyed the main AA site on Mount Tanoa. Only mod I'm using is ASR AI, which hasn't given me issues in any other campaign or showcase so I doubt that's it.

Confirmed this is happening with my friends and I. Desync goes from 0 to 100k either right from the beginning or a few minutes in, especially when there's AI entities involved.

We're running a listen server with only two other people. On a simple convoy ambush mission, when the convoy arrives all sorts of wacky stuff happens to the other two people, like floating tanks, warping vehicles, and so on.

Upvoted. Especially with the new flight model, not being able to use my whole HOTAS is kind of a pain.