Autofill fails for x.com in Brave browser?

The (latest version) 1P pop-up would not fill my account info into the login overlay at x.com using (the latest version) Brave browser on macOS. I then tried & successfully got it to work in Safari and Firefox, so this seems to be a Brave-only issue.

I rarely visit the Heil site but I never had a problem before with that site and 1P.

Has anyone else had this issue with Brave and x.com?