PSA for Mac user who use workout creator: don’t upgrade to Big Sur. Workout creator requires Adobe Air, and Adobe Air isn’t really compatible with Big Sur. I found this out the hard way. I upgrade to Big Sur, and I just tried to run Workout Creator. After a while, it did show me my custom workouts, but none of the buttons (e.g., Clone workout, etc.).
Here’s hoping that this pushes TR to finally create a modern workout creator.
[Edit] Great job by TrainerRoad team: there is already a fixed version, available here