I have this question because I see this statement from the rule
Create a World AR Effect using Spark AR that utilizes the Instagram back camera (the rear facing one; not the selfie camera) to add augmented reality to the world around the user - such as 3D content. The more delightful and innovative, the better.
Is it only for Instagram back camera. What about, if I upload it for facebook back camera? Please let me know. Right now there is some issue in Spark Hub. The effects are not uploading, also insta filters take much more time to approve. I am afraid, if I go for insta, the effect might not approve before the hackathon deadline. Please let me know.