I’m working through the FTP Builder workout series and I noticed that the “workout series” totals for distance, duration, and calories just above the “OK” button have been showing at zero for the last few workouts. Not mission critical, but fun to keep track of 
Some environment details:
Zwift 1.19.0
macOS 12.0.1
MacBook Pro (14-inch, 2021) (10-core M1 Pro)
Training with a 4iiii Fliiiight connected by Bluetooth