Recording a video vertically is not going to ruin the Tribute but it is typically preferred that every Tribute invitee record their video horizontally. The Tribute creator may ask an invitee to re-record their video horizontally and submit their video again.
How to Upload a Video Through Us
My Video Won’t Go Through and Keeps Getting Stuck, What Should I Do?
My Video Is Recording is too Low / No Sound
Is There a Recommended Length for My Video?
Do I Have to Submit My Video by the Deadline?
(Safari Browser) How Do I Record a Video Using Safari on a Mac Desktop/Laptop Computer?