I may be having a the same issue. I’m no expert at interpreting the logs but coming across your post made me search my latest server log for the terms “failed to stream media” and sure enough it is present in my log around the time of my crash:
Apr 27, 2020 18:27:40.388 [0x7f09f480b700] DEBUG - Failed to stream media, client probably disconnected after 4540416000 bytes: 104 - Connection reset by peer
I’m using an Nvidia Shield TV and I’ve been having playback errors and crashes with the New Player enabled. I don’t get any errors with the New Player disabled. Most of my media is 1080p HEVC in an MKV, not 4K.
I seem to have some sort of “audioTrackUnderrun” message in my client logs as well. Again, I’m no expert with these logs, so I’m not sure if that is related or a separate issue.
Here’s a link to my post with all the details of my experience over the last handful of android tv beta releases: