Crashing while editing

Im a noob here so; just installed Kdenlive 0.7.5 from sunab repository, installations went smooth.

Came to editing using Kdenlive and if its just cutting scenes and working using multiple tracks, works smooth as can be.

When i add effects and try to edit, Kdenlive crashes pretty soon after the effects are added.

I have MLT 0.4.4 (I believe), which should have been included in the repository package, but since some effects are missing, most important to me being automask, I'm assuming something is wrong with my MLT.

Here's the terminal lines from the crash

kdenlive(22706) CustomTrackView::mouseReleaseEvent: // get trans info
kdenlive(22706) CustomTrackView::mouseReleaseEvent: // get trans info2
kdenlive(22706) MoveClipCommand::redo: ---- redoing action
KCrash: Application 'kdenlive' crashing...
: Fatal IO error 9 (Bad file descriptor) on X server :0.0.

** (:22706): WARNING **: Serious fd usage error 15

** (:22706): WARNING **: Serious fd usage error 13

Hope someone can help me fix this.