Since I upgraded my MAC to Big Sur recently, my Time Machine backup stopped working. After a week of diagnostic with Apple tech support, it was determined that Webroot SecureAnywhere was preventing the MAC backups from working.  I uninstalled Webroot, and suddenly, Time Machine started working again. I let it work for a few days. Then, I reinstalled Webroot, and immediately, Time Machine stopped working again.  So my question….  Has this been reported and can Webroot do something about it?