Time in Power Zones way off on Web as well as IOS app

Is there actually a bug that forces the Time in Power Zones to be displayed with a hidden basic number instead of the actual set FTP.

My FTP is set properly to 140W across all my devices. 

All Power Zones are set correct. Reset of the Zones does not solve the wrong view.

The Time in Power Zones on the Website shows values way off.

 

This happens only in this view on the Garmin Connect Website and in the Garmin Connect IOS App.

Time in Power Zones are correct when looking into the activity using a Garmin Edge 1040 Solar and the zones are displayed correct in the following view: