Account management wrong "sign out" URL

I’ve got keycloak setup behind an nginx reverse proxy and everything seems to work ok as long as i have the realm Frontend URL configured to “https://sso.mydomain.org/auth” BUT the “sign out” button at the upper corner of the account management screen points to http instead of https for some reason. The URL in question is:

https://sso.mydomain.org/auth/realms/myrealm/protocol/openid-connect/logout?redirect_uri=http%3A%2F%2Fsso.mydomain.org%2Fauth%2Frealms%2Fmyrealm%2Faccount%2F

It should be:

https://sso.mydomain.org/auth/realms/myrealm/protocol/openid-connect/logout?redirect_uri=https%3A%2F%2Fsso.mydomain.org%2Fauth%2Frealms%2Fmyrealm%2Faccount%2F

Am I missing a base URL or something somewhere?

Also, I should mention, this is Keycloak 11.0.