video mode cross fader not match video fader

Hi Guys im using Macbook Pro my set is DJM850 & CDJ850 Firmware is up to date i already ON the MIDI button but im using Rekordbox DJ Trial Version the Crossfader had issue on software it doesn't match if u fade between both mixing videos. any help! other software SDJ & VDJ works fine on crossfader it sync when mixing videos. Its Better to post a Videos to solve this problem easy for users to follow.

look the link i post the video mixing the middle Video monitor does not change i need to do it manually using mouse cursor to fade left or right   https://sendvid.com/qlhsh5p9