1Password won't open in Vivaldi any more

Anybody else having an issue with the 1Pwd extension in Vivaldi?  Better yet, has anyone found a fix?

I recently had to rebuild my Windows 11 computer.  I reinstalled Vivaldi and 1Pwd, and downloaded and installed the extension from the Chrome store.  I've signed in to my 1Pwd account in the extension.  Now the 1Pwd button shows up in web forms, but clicking it doesn't do anything.

Any suggestions?

Thanks.