Stuck Marketplace update

This is the same as those other issues noted (MCPE-153599) where there is a problem with a world download that won't do anything when the Update button is pushed. Apparently it's not a Minecraft bug and needs to be addressed on a per map basis.

The world is Cursed Mines.
Creator is By The Craft Stars

If you're able to get this one fixed my son would be very appreciative.

Thanks,

Ian