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Here’s hoping it helps. It worked wonders for me. I had one of those moments of utter disappointment when I tried Plex, after getting my hopes up and getting excited about the 4K Apple TV (and doing a damn near 100 mile round trip to get the bloody thing.)

But faith was restored and I breathed a sigh of relief one I tried Infuse. I still don’t find it as refined as Plex but it’ll sure do for now.

Worked great! No issues at all with a 40 GB file. Did have to go to infuse Pro though.
 
I’ve been busy and haven’t used the Apple TV lately. Have there been more apps updated to 4k ?
 
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