Pipeline stuck on "Wait for Manifest to Stabilize" Task

Issue

When executing a pipeline the Wait For Manifest To Stabilize stage gets stuck until the timeout is reached.

Cause

This can be caused by a few different reasons.  In order to narrow down the potential root cause, please check the following:

• If the execution was initiated by non-admin user and when an admin user starts the the pipeline, it gets stuck 
• If manually triggering the pipeline shows the same behavior
• If there is a difference in behavior when checking the above, then the issue may be due to the moniker naming convention.

What happens is that the request to fetch a manifest from Clouddriver does two permission checks:

• Does the user have permission to the account in question?Does the user have permission to the app specified on the manifest's app
• In cases where a moniker.app is explicitly specified on the manifest, then this is the app that is used.* In cases where there is no moniker.app specified, then the app is determined by parsing using frigga as per this article.