Issue with height adjustment for Flex Slider on Tour

Hello,

I am having an issue with the height of the flex slider on a tour. I have many images in the image gallery of the tour. Some are portrait, others are landscape. When I view a portrait image, the height of the flex slider moves downward (expands) to allow the image’s width to be 100%. However, when I select a landscape image in the gallery, the previous height of the gallery remains the same, leaving a very large gap between the image and the gallery images. I would like the height of the flex slider gallery to remain the same, whether or not the images are portrait or landscape.

Thanks.