The extension reports “No forms found on this page.”
The page does have a form element.
The form itself might be rendered async and not on initial page load, but even when all loading as done and using “Find matching logins” the same error is reported.
Not sure. It seems to find a lot of forms now - maybe they have fixed a problem with the site in the mean time? Have you enabled debug logging and looked into why this information is reported?
Indeed 3 forms are found. Two of them are search forms and one is some login placeholder form which is never used.
The actual login form is not found. For some reason this form is not available in the window.document.forms collection, even when the page is already fully loaded and thus it is not found by the extension.