I have the same issue with Garmin Connect for windows already for nearly a year now. Sometimes the Training Status pages are filled and sometimes not.
E.g. the Training Status page form Dec 2019 till November 2020 contains the 7 Day training load graph which is (almost) correct (one strange hick up).
If I select the 6 months June till November 2020 I also get the graph.
If I select the 6 months Dec 2019 till May 2020 it says 'No Status' and doesn't contain any graph.
when and how will this be fixed?