This has clearly been a significant issue for some time that has a MAJOR impact on functionality and usefulness. Given that there is a very limited number of “courses” and I use my trainer almost exclusively for ERG workouts, this may end up being a problem that ultimately causes many Zwift users to “give up” and move on to a different platform.
Clearly, Zwift has been growing it’s user base (based on the “road closure” alerts I receive) so there are bound to be growing pains… BUT, if they lose users who find that the software is just “too buggy” or unreliable, then the total number of users may stop growing and even begin to shrink as word gets out that Zwift doesn’t really "work: and new users get bored with the limited course options and move on to something else.
Don’t get me wrong- I absolutely love doing structured, ERG workouts on Zwift but I no longer “just ride” since my “trainer time” is for highly specific training and when I want to “just ride” I’d prefer to do that outdoors. Perhaps I am a very small minority of users who are serious cyclists… but don’t think so? I do know that some of the people who were using Zwift when I started are no longer using it. I would suspect it is probably a combination of boredom from “same old course” and/or “too many technical problems”.
For me, my primary interest is structured workouts in ERG mode (since course doesn’t really matter, boredom/redundancy is not really an issue)- but if ERG mode doesn’t work (and the iOS app to control is REALLY, REALLY unreliable and loses connection repeatedly and often fails to control workout) then I will have no choice but to look for alternatives.