Can't retrieve email claim

Hi,

I am a developer of an application that implemented the OpenID protocol. One of my clients uses KeyCloak as a provider and cannot connect to my application.
The problem comes from autoprovisioning: I request the “email” claim for the creation of an account, but it does not appear in the response to the request (whether in the access token, the id token or via the userInfo point). However, I do get the “email_verified” claim when I set the “openid profile email” scopes.
At the client, the config of the “email” claim looks like this:

My questions are:
Knowing that other clients retrieve the email with other providers, is the error on my side, or is it the client’s KeyCloak configuration that is bad?
And if so, what would be the potential problems preventing the recovery of the email?