[I can't seem to change my products in the Marketplace to Active status. Help!]

I am having the same problem.  The listing content has the "Active" radio button disabled.  All the required fields are filled, but I can't list these items.

[Trouble placing mesh on the market]

I am encountering this exact same problem.  The option to choose Partial Mesh or 100% Mesh are grayed out.  I'm trying to post my first mesh creation on Marketplace, but I can't see any way to enable the mesh settings for the listing.