I'm having that issue too.

Hmm, I'm trying to remember how I fixed that issue in the past. I believe that taking these steps should work:
-Host the server, and load the workshop game
-If the board doesnt appear for you as the host either wait a few minutes or load the workshop game again until it does work.

Thank you for your feedback, and let me know if you have any success.

The table map/board image doesn't load correctly whenever I host a room, friend says he can see it fine though. Not sure what's causing it but figured I'd bring it to your attention. All your other maps are awesome though!