WD Anywhere Backup has stopped backing up new or updated files

I have been using WD Anywhere for quite some time.  I have 2 backup plans.  Until recently, all new files and those I updated were automatically backed up.  I don’t know what has changed but I can only get files backed up by using “Change Selected Files”.  Any suggestions?  Do I need to delete the backup plans and recreate them?

That usually works in my case, just delete the backup plans and start over.