Hello Umar,

In LayerSlider v5 or v6 we changed how slide transitions are working. If there is no transition selected, the default transition is "Sliding from right". To select transitions, on the right sidebar, please click Slide -> Timing & Transition -> Select Transitions. In the modal, you can preview all transitions by hovering their names. Select one or more transitions by clicking them. If you would like to apply the selected transitions to all slides, use the button at the top of the modal for that. After that, close the modal and publish your slider.