Substance Sampler doesn't export materials

Thanks for reporting, I can indeed reproduce. We're taking a look at the issue, and I'll keep you updated.

Hello Cyril,
Thank you for your response.

Yes, I tried to reopen Sampler and also reinstalling it. After that, the issue was persisting, so I exported a default material from Sampler gallery with no issue.

Yesterday I managed to export the material, but sampler created a file with a long name with random letters and numbers. So definitely is a file issue. Here you have the download link if you want to give a try: 
https://ambientcg.com/view?id=GraniteSubstance001

Thank you!

Hello @ninjo3D,

I know how this advice sounds, but have you already tried to close and reopen the Sampler project before exporting? This could very well solves the issue.

With that being said, I'm not aware of such an issue, and everything works as expected on my side. Therefore, if the problem persists, I'd like to take a look at your .SSA file.

Keep me updated.