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When you create a new domain, it will take some time for it to propagate across the infrastructure.
The reasons are documented here for CDN : https://learn.microsoft.com/en-us/azure/cdn/cdn-troubleshoot-endpoint#cause
and the same applies to a classic AFD as well.
I take it that you are,
- Creating a new domain and a new Rule for it
- And then using an existing backend in the Rule.
If your case is specific to "domains newly created, and the issue is reproducible for the first few minutes " , I would say this is to be expected.
- This is because, as you can see, the Cache policies are updated along with Rules and not with individual backend
- So, if you are creating a new Rule or updating a rule, it is going to take some time to propagate across the infrastructure even when the backend is not updated/changed.
Please let us know if we can be of any further assistance here.
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