Zwift activities (on Tacx) not taken into account in Training load and (therefore?) in Training status.

Hi,

I have read previous articles on that topic but haven't found any answer to my issue.

I am cycling outdoor and indoor. Among my 5 last activities 2 were outdoor recorded using Garmin Edge 830 and 3 using Zwift. All of them with HRM and all of them appear correctly in the activities log. However Zwift activities are not recognised nether in Training load not Training status. (But VO2Max is updated for cycling.) I basically make the whole Training status feature useless. 

Any ideas what could be the reason?