There´s a “bug” in the V14.5 with the option to authentication against the ID Vault because of the stronger default algorithm used by V14.5. The problem is described in an official KB article of HCL:

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0122915

If you’re in maintenance, you can create a case at HCL Support and will receive a fix for this issue.