Failed when validating user through authentication service
If you make changes to the custom module code, you will need to re-register it to apply the changes.
You can build the JAR file using Apache Maven™ as detailed in How do I customize authentication modules using source code in AM/Open AM (All versions)?
The following example demonstrates a user authenticating to one chain and then doing a session upgrade to a second chain with the same session token.
You can re-enable module based authentication if this is viable.