I have Edision OS Mini running clean openatv-5.1-osmini-20151020 image without any updates applied.
The streaming of 4:2:2 channels runs without any issues(stuttering, freezing and etc) using this image.

When I installed an image from November or the latest ones, the 4:2:2 stream can't start at all or the pictures freezes in a couple of seconds(the data transfer stops).
The problem occurs when I am using direct connection between the receiver and the laptop via LAN cable or over WiFi.

The same streaming behavior can also be seen for Ultra HD channels.

The streaming for SD/HD channels work normally. I haven't seen any issues with them.

Is it a bug into the new kernel updates or an issue with a driver ?

Thanks in advance for any settings or/and workarounds for the issue.