Premium assets not showing up

I just purchased the Sunless Citadel module, and then added it as an add on to a game that I created. When I launch the game and go to the Premium Assets section of the Art Library, there is nothing there. Help! How do I get it to show up?

From the Marketplace page: This adventure, like all of the adventures from  Tales from the Yawning Portal  will work as an Addon: Go to the  Game Details  page (of a game that you created). Click on  Settings , then select  Game Settings . On the Game Settings page, scroll down to  Game Addons . Select the desired Addon from the dropdown menu, and then click  Add to Game . The next time you go into that Roll20 game, everything from the  Tales  adventure you added will appear within that game, from maps to handouts to tokens! Edit: Just noticed you said you did that. Yes, there should be maps and tokens visible in your premium assets section, as stated above. Did you check to see if the handouts (Journals) appeared?

Tokens are not added to your premium tab. The maps are in your page list. You have lots of handouts and character sheets which have tokens attached to them. There are tokens on the zmap pages also.

The handouts have appeared in my Journal section, but there doesn't appear to be any maps in there that I can add to the grid. I thought these were meant to be in the Art Library section.

The small blue tab (see your picture above) is your map tab. Click on it and it should drop down to reveal map pages.