There is currently a ten-day delay with the Google Search Console coverage report. It is not uncommon for these reports to experience delays but often the delay is about three-days. We are now showing data as late as December 20, 2019, which is ten-days ago.
There are numerous complaints about his on both Twitter and Google Webmaster Help forums. Here is what I see:
I wouldn't be concerned, it is not just you, it seems to be everyone. So relax, wait for Google to fix the backlog of data issue and check back after the new years?
I have not seen a Googler respond to these complaints yet but I am sure they are aware.
Forum discussion at Twitter and Google Webmaster Help forums.
Update: This is now resolved as of January 1st.