Bug with clouds while flying

Only the contours of the clouds are visible at the right angle
as above the clouds and under the clouds

Original languages: 

Pod odpowiednim kątem widać tylko kontury chmur
jak nad chmurami i pod chmurami

link to the video

https://www.youtube.com/watch?v=SI4EtRUjXkk

sorry but the video did not fit in the attachment