I have the exact same problem as experienced above !! And I have all updates installed!
Please MS: HELP!!!!!!!
In addition to the above, File History has done a switch from an old version of the config file with data (from previous PC) to a newer version of the config file (pointing to my newer PC) which references a data file that has a gap between January 31 2021 and now. File History is now a mess and I cannot count on all updated files between january 31 and today to be there!