A newly created policy template is not appearing on the API Portal, do not see any errors in the Gateway logs.
I've created a small checklist of things for you to review:
After checking those items, if the problem persists, would be useful to give us more details... Also, a good idea is to check how the Standard Policy Templates are built.
Looks like we have a starting point here...
Were you able to resolve the issue? What was the final result?
Stephen HughesBroadcom Support