hello thanks for your answer I bought it from this site :https://www.tbs-technology.de/shop/Prof-4K-H265-HDMI-Video-Encoder-TBS-2605_1, I have the bill, if you want, I can send it, 1080P_50hz ok no problem, but 2130p 30ps mixed screen, what matters to me is that it doesn't transcode when I add any b...