Stress history missing in Training Readiness.

My Training Readiness is all messed up since a couple of days ago stress history completely disappeared from the factors list. (Watch/Connect web and mobile) I have an Epix Pro 51mm for about 5 weeks now and I have plenty of stress history recorded. This feature as been working great for me until now.

After looking around here in the forums it seems to be a quite common issue, but didn't find any solution that worked for me. Only one suggested was a soft reset that did not work...

Help!