Always worked well, but no longer finds headset since update a week ago – Plantronics Hub™ Review

Since updating late Nov. or early Dec. 2020, the app no longer finds my 5200. Before that, no problems. I tried restarting the phone, app, headset, unpairing and repairing, deleting and reinstalling app.... nothing works.
Review by UgaVIII on Plantronics Hub™.