Think I’m dealing with the same thing. My rides from 8/24 and 8/25 weren’t saved. The Activities folder and any fit files in there haven’t been updated since 8/20. Same with the log files but there are launcher logs.
I also tried to change some in game settings such as Windowed vs Fullscreen which said I have to exit the game and that change didn’t get saved.
My workout history does show my last two sessions but I did notice that the date is wrong on them, they’re one day ahead of when I did them.
I tried to create a new workout to test and what do you know?
Since the log file isn’t being updated either, I have no idea why it failed to save. Nothing stands out in EventVwr either…
Running as administrator didn’t help either.