Campaign Banner Image Didn't Load

The campaign banner didn't load for a new game I created today through the usual 'select module' option. It was for Tomb of Annihilation which I only bought this morning.

Confirmed, this did not load a banner for me either. Typically modules come with banners. I suggest reporting this to the Devs via the Help Center as the forums are primarily for users helping users. 

I was thinking about this and in case there isn't a fix anytime soon the workaround for this is to pull the image from the marketplace ( LINK ), change "med" in the link to "original", right click, save as, and then save it to your computer. Upload it back to the banner.  Note: switching from Med to Original may not change the size, depends on how they have the image set up, but it is the best bet to get the best image quality.

Thanks, I did somethign very similar to your suggested workaround in the end, using the banner image from the welcome/landing page of the game. It is a shame that this resource isn't stored in one of the folders when the game is launched so it could be used in this sort of situation.