I am using Website builder version 6 (I think, the one before they came out with Vnext) and have the Black Canvas as my background as I used a custom image for my background. When building (still in process) it looks great on desktop, but on mobile it's shaved off. On the left hand side, about 3" is missing/cut off. I am not able to edit any CSS since it's website builder, hoping for suggestions? Another site I built with a different theme works just fine on Mobile.