Did the following workout yesterday, thought my threshold level would rise after that?
But it remains at the same level as before the workout.
This looks like a bug. 
I’ve just reported it to the team, but don’t worry about your levels too much at the moment. We don’t use them to pick workouts for you anymore.
I’ll follow up when I hear back about this one. 
Thanks!
But I think it’s useful for me when/if I pick my own workouts.
I’ll see if I can get that one changed for you. Hang in there!
Edit: never mind