Can't add it to my Substance Painter
Also thanks for the upload
I just downloaded this file to make sure it was uploaded correctly and imported it to Painter 2019.1.2 and it worked fine. What version are you using?
the file just has the outputs saved, nothing else was in the substance file for me.
Can't put in the actual lava no matter how much I tinker with the settings, always appears as coal.
Have you enabled emission?