Ionic2 RTL Slider problem

 <ion-slides (ionSlideDidChange)="slideChanged()" dir="rtl">

I used slider direction right to left. But the problem is When I am giving this.slides.lockSwipeToNext(true); for specific slide , I can’t swipe Previous Slide. Its Misbehaving. continuously If slide it going first slide that is Index 0 slide. Please any one know solution help me.