Hi, this is on my new Apple TV. I am running the GM tvOS code and I also have the latest Plex apps and server installed as of posting date.
I have video thumbnails generated for my shows and movies, I've validated they appear properly when I'm scrubbing through episodes via the web app. Works fine there.
However on Apple TV it doesn't work correctly. When I start scrubbing, only the thumbnail of the CURRENT frame shows; the preview box never updates. OR a thin grey border box appears. No matter how much you scroll around, just an empty thin grey outline of a box is drawn OR the frame you were previously keeps being drawn. It never updates to show the proper thumbnail. I've validated this on multiple shows and movies via the Apple TV app.
It clearly seems like a bug because it shows the thin grey outline of where the video thumbnail should be. Getting this fixed would be icing on the cake. Great job on the app so far!