ASP.NET OWIN callbackURL "/signin-auth0" cannot be found

Unfortunately, unless I can get something to somehow replicate that behaviour on my side, it will be extremely difficult to track this down… :frowning_face:

I understand. I’ll try to get a stripped down project working if I can get around the /?error=access_denied redirect issue. Any idea why a copy of the original project would behave like this?!