It's still a mystery, though, why WB wasn't notifying me of available updates??
When I went back and told it to search for Updates (after getting your responses here), it said my 11.02 version was current.
When I then went to the Stardock/Windowblinds site, logged in, and went to download the current version, it asked for my email address, then said that there was an upgrade available to me for $7.50 ...
However, I went back to my original registration email, used the link there, and it downloaded and installed with no issues...
it's probably another Windows 11 anomaly...