Help setting up Nextcloud

[Neriderc]

I'm trying to set up SAML authentication in Nextcloud. It's my first experience in authentik and I'm trying to follow these instructions: https://goauthentik.io/integrations/services/nextcloud/

After attempting to follow them, I get an error trying to access Nextcloud: Verification Certificate configured, but request is not signed.

Now, there are many unfilled boxes in my nextcloud setup, which are not mentioned in the guide, so it's hard to know what I've done wrong.

There are boxes in nextcloud asking for X.509 certificate of the service provider, private key of the service provider, and the public X.509 certificate of the IdP. Is it likely one of these is what I've done wrong?

I'm unclear on what I should be copying where. When I go to Applications -> Providers in authentik, I can download a signing certificate. Is this supposed to go in one of the above fields?

And as a bonus question, I don't quite understand how I map my authentik user to my nextcloud user, can someone enlighten me on how this is done?

Thanks in advance

[Neriderc]

I just want to reply and say that the issue was I had selected the self signed certificate for both the Signing certificate and the Verification certificate. I set the Verification certificate back to --- and it is all working fine.