As per the recommendation on another thread, I upgraded the firmware from 2015something to 20160630atest2 (not seeing how to downgrade it). This fixed the problem on Emby Theater's ability to DirectPlay but it completely decimated Android and Android TV support. It should be noted that I upgraded Emby Server from 3.0.6060.0 to 3.0.6070.0 at the same time. I attached the server log. The Leelbox MXQ Pro device it is sending it to does require transcoding done on the server.
-Android TV (attached) gives an error and stops transcoding on the server almost immediately.
-Android maybe only shows one frame that was transcoding and it locks up while the server continues to transcode oblivious that it is falling on deaf ears.
-Emby Theater does DirectPlay with no issues.
leelbox.zip