The one that asks for an email address and then tells you that email address isn’t in the system despite the same system sending you email? Yeah, I did. Many times.
No. No more. No more guessing, no more trouble shooting or debugging. I don't care and OP probably has more important things to do too. Sure, I can do it. Exceptionally well too! But, they aren't paying me, and users aren't shouldn't be their free, outsourced QA team.
The password reset field accepts a certain character but the login form sanitizes it differently so it won't be accepted. Or even trying to set a password with that character results in an "HTTP 50x error something went horribly wrong".