Workout errors

On some workouts I have errors like below on the picture - the is only one 20min “interval”. If I change duration of “interval under fatigue” from 300% TP MPA to absolute (e.g 2min) it is ok - there are 2x20’ with two “jumps”. Is it a problem with my Fitness signature?
2x20

We’ll have a look. Wouldn’t expect it to be your signature.

Yes… the problems with using %FTP… 300% is above your Peak Power. We’ll change it to use MMP and all should be good. Give me a sec.

Ok. Try it now. I took the opportunity to convert the workout to use smart intervals which will auto-adjust if you use our player.

Looks good now. Thanks.

I’ve tried Smart intervals on edge 520 today. New app for garmin is awesome!