Currently, there is no specific information available regarding the release of an ISO built entirely on the 26200 servicing stack for Windows 11. If you are experiencing a split-servicing state with elements of both 24H2 and 25H2, it is advisable to keep an eye on official Microsoft channels for updates regarding future releases or fixes. You may also consider using the Feedback Hub app to report your issue, as it can help Microsoft address such conflicts in future updates.
For immediate assistance, you can reach out to Microsoft Support or check the Microsoft Support Community for guidance on resolving servicing stack conflicts.
References: