Active Offseason

Hello,

Today my Zwift was frozen during Active Offseason training Endurance with max sprint in the last 5 min of 15min 100W interval. I was just meed to make last 8sek Max interval end long training was done. Zwift frozen and I could not continue or save the training. It is visible I did 58 km in Utopia but training was not finished. Looks like I did not made this training.
What I can do to have this training visible as done?
Regards, Gregor