This might not an Emby thing, but thought I'd ask -   I bought and ripped the above using MakeMKV. It plays fine in Emby Theater using English True HD 7.1 and its direct Playing. If I play the same on a Shield the picture is a blocky mess and its direct Streaming. If I play it again on Shield but change to 5.1 audio it plays fine and direct plays. Other 4K movies play fine on the Shield using True HD 7.1.   Now when ripping MakeMKV it did fine but said 'AV syncronisation issues were found'.