Self Connection Failure Caused by the Invaild Loopback URL

Summary:

I can't save the new admin password in the Self Connection because of the invalid loopback URL (i.e.,https://localhost:443) on the EPM Test Environment. The error message shows that the URL (i.e., https://localhost:443) points to an untrusted or invalid host. However, when I changed the URL to the EPM Test environment’s actual domain (FQDN), it worked. Is this the right procedure to solve the issue?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

EPM Planning Version 25.10.71

Code Snippet (add any code snippets that support your topic, if applicable):