Please be aware that before Hero 10, the LRV aspect ratio is not exactly 16:9. It is 848x480 with sample aspect ratio of 1.0 making the display aspect ratio 848:480 = 1.7666… instead of the 16/9 = 1.7777… This will make it look a little funny at times, for example, if you put a clip with proxy a video track above another, then some video from below will bleed through the sides. The Hero 10 changes this to 768x432 to address this, but also I made a change for the next version to detect the older LRV and correct the aspect ratio.