Have a mibox that has an issue when playing content from Netflix, Plex, terrarium tv, and most other apps. Every few minutes I get an audio stutter. Seems to go away for a few after rebooting but eventually return.
Hooked up to my Denon avr which feeds the tv via HDMI
I had the same problem. Upgrading to 1028 nogat beta fixed it.
See this and let me know if you need any help https://www.reddit.com/r/AndroidTV/comments/7bxmip/mi_box_stuttering/dpn61hc/