Game crashed for me for the first time in years tonight, all because my internet connection dropped out on the home screen (I think). Loaded into London which took ages, frame rate was abysmal and repeatedly locked up fully for seconds at a time. Avatar was flickering, then it just died to desktop. Log file shows hundreds of curl errors where the hostname us-or-rly101.zwift.com couldn’t be reached. Nothing at all in Event Viewer or Reliability History, the game just ended itself.
Starting to suspect the internet connection watchdog and/or an inconsistent connection to the subdomain above might be what causes the stuttering I’ve been noticing.
PS: on the basis of the errors, every single user account has its own URL at /api/profiles/<youruserid>/in-game-fields/. That seems like a lot of folders.