Thanks, mine of still not showing UHD, they informed me that it has to do with the iTunes purchases being gifted is the reason why they are not showing in UHD. Also, for the Avengers and Avengers: Age of Ultron after I unlink and relinked my account back to MA it is now showing in UHD.
Do they show as iTunes 4k in the MA purchase history or just HD there and 4k on appleTV?
If they were "gifted" in that you had HD and bought UHD via 'gifting' it to yourself on iTunes, then yes, there is an issue between iTunes and MA where it wouldn't show as 4k in MA for some asinine reason that they have known about for many months and haven't bothered to fix. In this case it won't show as UHD in MA's transaction history and hence won't Vudu or any other store either.