Just installed Infuse out of the box onto our ATV 4 (not 4k). I connected via SMB over to our iMac, which is hosting the video files. We're getting a very odd but consistent issue where I can see a frame from the next scene (cuts only) before it encounters the cut. We're playing files that are around 600 MB and 1280x720. This only happens with cuts. Dissolves into the next scene don't appear to be affected.
Here's a link to a video capture where this issue happens twice. You see a single frame before the cut, a few frames from the end of the scene you're watching, then the actual cut.