Still present on Feedback Assistant 5.1 (487.2) on macOS Monterey 12.3.1 (21E258). Anytime I attempt to login, I'm greeted with the following message: Unable to sign in to Feedback Assistant Thank you for your patience. Please try again later. I haven't been able to login to Feedback Assistant for at least the last 9 months, but only just found this thread. 😅