Could you specify exactly what commands/recipes you are executing? I’m not quite following the nature of the puzzle. If you could capture exactly what steps you performed and what you are finding then that may help us to interpret the puzzle or provide a framework for us to attempt to test it in our environment to achieve a recreate.
After pusing: Through the GCP WebSite I create an new Instance template with the newly pushed image. (With my Google user account, who is “Owner” on the project)
What I i’m think I am hearing is that we have two instance templates … one where you create a Compute Engine it works and the other it doesn’t. Maybe we could use the command line in a Cloud Shell instance and get a detailed description of the two instance templates and examine them in detail. The following is a link to the gcloud documentation for a CLI program that can be used to obtain the details of instance templates. Maybe if we run this command against each template and compare the two we can get an “aha” moment: