I just got a Google Chomecast Ultra. Youtube and Netflix works just fine with 4K and HDR content, but VUDU will not even show my 4K movies. I have tried streaming from the app on my iPhone X, and my PC and both will only stream HDX.
On the official list for VUDU 4K HDR, Google Chomecast Ultra is on that list, so can someone help me?
Read more: https://iphoneus.org/faq/help-google-chromecast-ultra-and-vudu-4k.html