@Eugene Verheem
Thanks for your posting on Q&A.
In order to help us research further, please try to share the DISM.log and OfflineServicingMgr.log for reference.
In addition, please help to comfirm the following questions:
1.Have tried new ISO's directly from VLSC October 2021 patched and also having the same issue. Looking at the Offline Servicing log from MECM we can see the following error APPLICABILITY_CHECK_NOT_SUPPORTED 0x80070057.
What is the OS version and OS Build? Also Please help to comfirm the KB number of the CU which you want to inject into the Offline WIM file.
2. As far as I know, we could not import the .MSU package into the Online WIM files.
Also we could follow this link to import the update package manually.
Please keep us in touch if there are any updates of the case. Have a great day.
Regards,
Rita
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