Hey goldfire47,
Thanks for sending me your plug-in. Initially when loading it up in my Maya 2017, it did not work. However, there is a weird known issue with the plug-in manager and our plug-in where the plug-in sometimes won't load correctly and will throw errors. Can you try opening the plug-in manager and toggling on/off the Loaded and Auto-Load for the substance plug-in then restart Maya? I also toggled on/off the rest of the plug-ins, just in case there was a conflict of some sort. After I did this, it started working on my end as intended.