Featherlight gallery not responding to keyboard

I want an image slider that can open a lightbox. I was unsatisfied with the plugins that can do this natively, so I'm using Featherlight in conjunction with Lightslider. However, now the arrow keys won't change the lightbox image, but will still change the slider image. The arrow keys do work when using Featherlight without Lightslider. Is there any way to fix this?