It sounds like there might be an issue with the Azure update manager not detecting the necessary updates. It's possible that there could be a delay in the updates being propagated to the Azure update manager or there could be a misconfiguration in the update settings.
I would recommend checking the update settings on your Azure servers to ensure that they are configured correctly and also checking the Azure update logs to see if there are any errors or issues with the update process. Additionally, you may want to reach out to Azure support to see if they can investigate further and provide a solution. It's important to ensure that your servers are up-to-date with the latest security patches.