Unknownreported this bug
After installing MCC i noticed the following (Video) https://gyazo.com/3a18e2b087a2b47da4d453491c541688
Happens when moving head up and down
On servers where resourcepack is loaded but MCC is this doesn't happen
EDIT:After looking at the skin for a few minutes, it displays the texture that is around my players foot (6pixels)