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Very close call. I took your advice (which I really should have done sooner) and tried Firefox. Everything seems to be working. So it was either Brave or the Keychain extension got corrupted. I will try a reinstall and see if that fixes it as I enjoy Brave.

That's good, I would try using an In Private window in Brave. That means you don't use any of the remembered cookies.

If that works, try clearing your cookies in Brave, or at least deleting the PeakD cookies and seeing if that helps. If that still doesn't help, make sure you have your keys backed up and try deleting the Keychain extension and reinstall it.