I had a third party company contact me representing LG and an engineer visit. We confirmed there were issues with motion and he has taken this information back to send to LG. Additional observances. IN PC Mode the balls video test plays smoothly at 2160 @ 50/60Hz and 1080 @60Hz. 1080 @50Hz still stutters even in PC Mode! This is probably why we see random stuttering issues on PAL 50i TV broadcasts. I got the engineer to make a note of this. There is a new firmware becoming available to international customers that adds HDR Game mode and fixes the audio hum issue. If it resolves or creates any motion issues I will update this petition. I highly doubt it will though. Fingers crossed!