Template Unavailable for Workshop Upload?

So I was going to try uploading my two NA themed Lodges, but for some reason one of them isn’t available. In fact, bizarrely to me, most of my buildings aren’t showing up. Only one that I made at least a year ago using the old builder, and one I did yesterday using the new builder. Nothing else. I even tried building it legitimately in a game to see if it just needed to be checked out or something by the systems. I’ll try uploading them here I guess to see if anyone can see a problem I don’t?

EDIT: The only files I can upload here are the .png files? Hope the .json isn’t needed or I’ll have to figure out how to put it into a zip or a rar I guess.

The longhouse is the one that won’t pop up for upload, the round one is available.