Sorry to hear that. There are two separate issues that is affecting nVidia Shield users.
One is an android issue where a spurious end of file is detected by ffmpeg and for this extra diagnostics have been added and the evidence is being looked into.
The second appears to arise when hardware acceleration is enabled and that manifests itself in failures with the nVidia Shield running low on memory when the transcoder process starts. This is being looked into by our server team and nVidia team
