What happens with the resolution in 4K at the recording? In your YouTube video you can clearly see that this function was included in the Zidoo and is now only 1600x1200 possible? Can you make the 4K recording again !!
My understanding is that whilst 4k input is available, 4k output can never be a possibility because this would incur the wrath of Intel, who would almost certainly take action against Zidoo because to record a 4k stream would involve bypassing HDCP. Outputting to 1080p however, based upon a lawsuit that Intel lost is feasible because it was established that as the 4k stream being recorded was downgraded to 1080p, then a technicality meant that Intel could not win.
