HP Smart Login failure due to cookies - Windows 11

[CEBE1]

I reinstalled Win 11 (dev channel preview), reinstalled HP Smart and can see my printer, status and ink level, but clicking on "Scan" gives me the dreaded cookie error

A review of existing community solutions was little help. I'm not sure who wrote the "solutions" as they aren't in any sort of English that makes sense:

Cannot sign in to the HP Smart app (Windows)

After signing in to your HP Smart account, an Open HP Smart prompt displays in the web browser or the sign-in fails. Enable the prompt to open the HP Smart app, or use HP Easy Start as a workaround.

1. Open the HP Smart app, and then sign in to your HP Smart account again.

   • If a prompt does not display and the sign-in issue persists, continue with these steps.

   • If an Open HP Smart prompt displays, enable Always allow to prevent future prompts, and then click Open or Open HP Smart.

So, if I can't sign in, then I should sign in to the HP Smart account (I can do that) - but - "If the prompt does not display... " (it doesn't), continue with these steps..... but there are no next steps aside from a workaround (install Easy Start) and that will download, but will not install.

It used to be easy, you install the printer driver and you're off printing and scanning.

There has to be a solution. 

A similar computer that had HP Smart installed a while back - and now running the same version of Windows 11 - scans nicely. This one worked fine before the OS was reinstalled.

This is the first program (other than Office) that was installed after the OS. Oh, and I can print nicely from this computer.

How is HP going to resolve this?