I called helpdesk yesterday 28 December to mention this issue both on Tacx Training on mobile (iphone) and on desk (PC). Still not working today...
In fact I cannot access my activities, the system is running endlessly without giving me access to my workouts or creation of training, then disconnect automatically and I have to sign in again with both iphone and PC desktop app.
Something is not working since 28 December....
Do something!