TotalQuickFilter not appearing on the toolbar since version 6.2

TotalQuickFilter by Alta888 is one of the add-ons that was rapidly updated to support TB 78.x, however the latest build 6.2 (released a week ago) does not appear on the toolbar and, in spite of the fact that I have uninstalled and reinstalled it, I can’t get it to work.

Any ideas how to get it to work - as it has done for years?

Ask on his Issues page.