New bug while sending video through whatsapp [mi note]

Jul 9, 2014
i am sending a video through whatsapp and when whatsapp trys to recode it to make it smaller, the video is seen very bad with lines.

so what is happening? i thought it was the mtk chip in red mi note, but with the same chip and another mobile in x7s iocean, it works ok something must be wrong in the rom i think :S