NFT dataset UID shows not loaded status in ARToolkit Unity

I’m working with ARToolkit in Unity and having trouble with NFT markers. When I choose square markers everything works fine but switching to NFT marker type causes issues.

The main problem is that the UID stays in “not loaded” state no matter what I try. I created my datasets using genTexData tool and put all the files in Unity’s StreamingAssets folder like the docs say.

I even downloaded the sample NFT scene but get the same error there too. Also grabbed the newest scripts from the repository but no luck.

My setup is Unity 5.3.2f1 with ARUnity5-5.3.2 package running on Windows 10. I’m pretty new to both Unity and ARToolkit so maybe I’m missing something obvious?

Has anyone else run into this NFT loading issue? Any suggestions would be really helpful.