How to resolve blank window when opening 1Password.

I've the same problem, starting today: blank screen when starting 1Password by ANY method, including as quick start or from browser.

Restart didn't help. Switching from NIGHTLY to BETA did solve the problem.

DETAILS:
* The problem started today.
* I'm on nightly channel. Uninstall says "Product version: 8.10.7-25.NIGHTLY".
* Windows 10 Pro with Edge.
* https://drive.google.com/file/d/1FsTwrsenbIhmRepb0l4pc_NuO3usmTWR/view?usp=share_link, and below.

It's confusing to look at, because 1Password has no window borders. But that's a different (UI-design) BUG.

If I select "Settings" from the notification-tray icon, I also get a gray screen, but this time with a window border and a title bar with a functional "X" (exit) button.

EDITS: Correct my update channel. Add minor details.