Not getting message and stars when finishing workout

Enjoining the workout mode but have an issue. When finishing workout the final window doesn’t always open. When I go into menu the window pops up but I don’t get any start (0/0) although I finished all the segments perfect. When I log into zwift workout page my workout isn’t registered (no date and stars). The system does transfer to Strava where all the workouts are registered in the right order so that is not the issue.

I have had this twice now too. Any feedback