Dwarf Fortress

Dwarf Fortress

The Dwarf Fortress Workshop
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Unable to Upload
When I try to upload a mod, it hangs endlessly after hitting the publish button and uploads a hidden 0 byte mod. In the root folder of the mod there is a preview.png that is 300x300 pixels, with the same image copied and pasted as thumbnail.png. There are no numbers or special characters in the file name. The mod functions locally without any issue. I've been fumbling around experimenting to try and find a solution, but after a good hour of it I'm still having this same issue across multiple computers, so I'm certain I'm doing something wrong.

The info.txt reads as follows:
[ID:nocats] [NUMERIC_VERSION:10] [DISPLAYED_VERSION:1.0] [EARLIEST_COMPATIBLE_NUMERIC_VERSION:10] [EARLIEST_COMPATIBLE_DISPLAYED_VERSION:1.0] [AUTHOR:crime elfs] [NAME:No Cats] [DESCRIPTION:Cuts vanilla house cats from the game.] [STEAM_TITLE:No Cats] [STEAM_TAG:tweak] [STEAM_DESCRIPTION:Cuts vanilla house cats from the game.]
In the objects folder, there is only a single file- creature_nocats.txt:
creature_nocats [OBJECT:CREATURE] [CUT_CREATURE:CAT]