iPhone LANDSCAPE display issue

Hi Support,
I noticed that the lightbox functions properly when the (3,4, and 5) iPhone is held in PORTRAIT mode, but does not when in LANDSCAPE mode.

While in landscape, the lightbox doesn’t appear relative to the trigger, but at the page bottom.

Has anyone else experienced this issue? Or, found a solution?

https://www.ads-software.com/plugins/wp-video-lightbox/