On an iPad Air in ios10, I used to STREAM any video I had stored in iTunes library on my iMac via my WiFi, except the high resolution versions.
NOW in ios11, I can stream ONLY the high resolution videos I purchased in iTunes. Or play any video stored locally on the iPad Pro.
Same issue here with IOS Public beta 4 on iPad Pro 9.7. It’s as if the TV app no longer knows how to “stream” from my shared iTunes library on my iMac. And for comparison, I CAN stream them on my iPad mini and my iPhone 7+ (which are both still on IOS 10).
Point being that iTunes home sharing from my iMac to my iPad mini, or my iPhone or my Apple TV works fine.
But it does not work in IOS 11.
In fact, the TV app in IOS 11 doesn't even show a play icon for the items. It will list everything in the shared library. But when you select one, it displays the info for the movie, but there’s no play icon displayed.
It’s as if Apple either intentionally turned that off, or it’s a major bug....or they had an intern rewrite it from scratch for IOS 11, and they “didn’t know it did that” previously. (Bit of frustrated sarcasm there.)