@Hurrian you wrong
the reason is framebuffer orientation. harmattan have landscape-oriented framebuffer, but jolla have portrait-oriented. and problem inside jolla lipstick homescreen, it just dont care about other framebuffer orientation, than portrait.

P.S. i made a patch for lipstick: https://together.jolla.com/question/...r-orientation/
but i dont hope it will be applied any time soon, and i cant release hacked binary myself because of copyright issues