When I go to reset my password, it asks me to put my email in, then sends me a password reset email. But when I click the link it always brings me to the "pick your interface" landing page, which then forwards me to the front page every time rather than a password reset page.
I got around some problem with my Blåhaj Lemmy account by adding "lem." in front of the address written in the email. So, instead of lemmy.blahaj.zone I made the address be lem.lemmy.blahaj.zone and then pasted that in the URL bar and pressed Enter. Maybe that could work for you as well?