In Workstation, the Library environment shows the trust relationship as enabled, but users still cannot sign in through the trusted relationship flows (e.g., OIDC/SAML/Trusted).
The trust relationship metadata stored by the Strategy Library and Intelligence Server can become inconsistent when component versions are mixed. Older server-side components may not provide the full status behavior expected by Workstation 26.05.
Remove the stale trusted application entry from Workstation, then remove the trust relationship from the Library server side and restart Library.
After the restart, recreate or reconfigure the trust relationship as needed.
Recommendation
Use matching versions of Workstation, Strategy Library server, and Intelligence Server when configuring trusted relationships. For Strategy Library 26.05 trust relationship management, all related components should be upgraded together to avoid stale or misleading status information.