Is there a rule somewhere that says banners will always fill the width of the screen?
Here's what's happening:
I have a 12 column layout. I want a 6x2 card to pull a banner that will link to a website. I have designed an ad at a 6:2 ratio and uploaded it as my banner image. I have created a card at 6x2 (full image) and card mapped it to pull my banner and the 6x2 card. For some crazy reason it is cropping the banner to 2 rows tall but it spans the entire width (12 columns). I can go in and change the card to all different widths and it doesn't change anything in my collection layout. It seems like a bug to me, but I can't do anything to fix it. Have tried logging out of preflight and the portal. Help!!