A bit late to the party but joined the “10k calorie challenge” and did my first ride of 2020 yesterday. The calorie count worked and all was well until today - I completed a workout and I see it tracked in my Zwift companion app with all the metrics however the calorie count didn’t update. Any ideas?
If you see your rides logged in your Activities log either in the app or via https://my.zwift.com/ then raise the issue with support. If you don’t see your rides then for some reason the ride must have failed to save.
I am having the same problem and currently I lost over 1200 calories from last few days. All my rides were logged and I can even download the *.fit file for each. Contacted Zwift support twice but haven’t heard anything.
I did few short test rides yesterday trying to resolve the problem myself. I ended up renaming the Zwift folder in the \%user%\documents to allow it to regenerate all the configuration files and that seems to fix my problem. However, I will still need to rely on the support team to recover my lost calories!