Hi @paul.till.ext,
Welcome to the Community!
This doc explains how to configure the redirect link. It sounds like you are using classic universal login, so this will be set in Email settings. Let me know if this doesn’t solve it.
https://auth0.com/docs/universal-login/default-login-url#completing-the-password-reset-flow
I wasn’t able to get this to work. If you want to submit a feature request, that can be done here.
Hope this helps!