[Bug] Swipe right doesn’t work with only 2 images/slides

Hi Frank,

thanks for this amazing plugin, keep up the great work!
I found a bug and would like you to have a look at it:

It happens every time you only have 2 slides/images in your slider.
You lose the ability to touch swipe into the right direction.
Swiping left works fine, only right seems buggy.

3 slides or more, swiping in both directions works fine.
Example in the attached URL.

The page I need help with: [log in to see the link]