Why the release preview environment is not available even after the request is done?

AI generated answer (using internal Slack threads):

The Release Preview environment may not be available even after the request is done due to several reasons: 1. Timing: The Release Preview environment is not instantly available after the request. It takes some time to provision the environment. If you've just requested it, you may need to wait a bit longer. 2. Sandbox Account: If you're trying to request a Release Preview for a Sandbox account, it's important to note that Release Previews are typically for production accounts. However, as per one of the threads, it seems possible to request a Release Preview from a Sandbox account, but this might not always work as expected. 3. Upgrade Schedule: The availability of the Release Preview environment is also tied to your account's upgrade schedule. If your upgrade is not due until a later date, the Release Preview might not be available immediately. 4. Provisioning Issues: Occasionally, there might be issues with the provisioning of the Release Preview environment. In such cases, you might need to request a re-provisioning. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******