There is additional check for Flighting builds ?

Finally I can "keep apps and files" however Setup needs me to "enable Flighting".

It gives a button to do it but nothing happens.

My ISO is uupdump + NTlite modified.

Edit: worked after restart

It should be noted that the edition in the ISO Ive switched from EnterpriseN to ProfessionalN by editing Name Description and Flags with NTLite.

Nope didnt work rolled back.

OK worked with untouched uupdump ISO where the ProfessionalN edition was present from the beginning.

After setup some MS Store related things did not work still.