I've tried to submit a bug for the Xcode project using Feedback Assistant on macOS 13.4.1 and also via web, three times, and all resulted in a broken feedbacks which can't be viewed in either the Feedback Assistant or web.
FB12424944, FB12425488, FB12425504
My colleague has been able to send a feedback for a different project just fine. Instead of trying to file yet another feedback (this time for the Feedback Assistant project), I guess it's better to ask here: how to proceed?