Why is Close Encounters of the Third Kind not 4K on Vudu?

[EdReedFan20]

Months ago, I purchased CE3K physically on UHD. I redeemed it on Movies Anywhere. All three versions show up as 4K. Fandango Now has the Special and Director's Editions in 4K. iTunes has (what I believe is) the Director's Cut in 4K (though, it might be three-in-one with a version selector). There are others have it as well. But not Vudu. It's HD only there.

Sony seems strange with regards to UHD. For instance, when Moon came out on UHD physically, it redeemed fine in 4K on Movies Anywhere, but Vudu's version of the movie was HD-only initially. It eventually was added. Ghostbusters (2016) is still HD only (everywhere?). I don't get the inconsistency on their part. In the end it really doesn't matter because I have my physical disc of CE3K (and Moon and Ghostbusters) and I can watch the streaming version of CE3K on my AppleTV 4k. It's still annoying, though, to not have the 4K version everywhere.