Xmas Card Back Showing Vertical BUT Supposed to Be Horizontal!

This Christmas card design front is Vertical; back is supposed to Horizontal. I was going to share this design on social media and I discovered in the product view, the back is shown Vertical, so it looks skewed. If I go to the design board, it shows as Horizontal view as it should; if I click “Done,” and go the product back view, it’s skewed Vertical. 
I can’t sell this card looking the this! I quick fix would be appreciated!
Link: https://www.zazzle.com/elegant_faith_hope_love_3_photo_foil_holiday_card-256924469212920717

Screen Shots:

The back view on product page:

The design board view as it supposed to look: (and horizontal IS selected in the drop-down menu)

(note: design board does not appear white in screen shot because I have the blue light of the white background softened for eye comfort.)

Please notice this technical issue. Last time I posted a technical problem, weeks passed before a Mod apologized for not seeing it.