Hello,
I had Confluence using Jira User Directory through app links without problem till now.
I have migrated the host where I had Confluence and Jira, and then I have changed JIRA app link, to a new IP, and then I enable recovery_admin in Confluence, to reset app link to the new IP too.
From both sides, both outgoing and incoming connections are connected but still, but still I cannot login through Confluence using Jira User Directory.
Confluence:

Jira:

Anyone knows what is happening?