Slicing problem with Cura on printrbot simple ?

[Odolyte 0]

Hi Everyone,

I get something new with Cura 15.04 that is not good... You can check this :

https://www.evernote.com/l/ABjmT26fFFJNH...

When slicing with cura (15.04), i used to have smooth movements of the print head while making infills, now i have these hard movements when going back and forth, making "tak" sounds. This ruins the quality of some prints making ripples on the print's surface. Where does it come from ? Slicing parameters were not changed...(or at least not that i can notice). I already tried travel movement speed, here i'm at 50mm/s like the print speed.

What am i missing?