SSO setup in Azure problems

1. What is the issue? Please be detailed.
We are trying to setup the SSO feature using Azure. The necessary settings were added to the Enterprise applications and App registrations sections.

But the SSO does not work, showing an error:

When testing the connection in Azure, we get the following message: "Microsoft Entra ID successfully issued a token (SAML response) to the application (service provider)." But in the tab where the ODK Central is loaded we get the following error:
{"message":"Could not find the resource you were looking for.","code":404.1}

2. What steps can we take to reproduce this issue?
On the ODK Central side, the .env config file was updated accordingly and docker containers recomposed, according to the manual:

OIDC_ENABLED=true
OIDC_ISSUER_URL=my-issuer-url
OIDC_CLIENT_ID=my-client-id
OIDC_CLIENT_SECRET=my-client-secret

Tested all endpoint links that are generated in the App registrations section in Azure.

Is there anybody who was successful in setting up the SSO using Azure? Are there any suggestions on what can be done?