Hi,
Yes, I've tried it out. It worked for me, although I tested with the newest version of the plugin that will be released soon. I have not had a chance to test it with an older version. However, if I run it on a Substance node that has no sbsar loaded, then I get the same error you mentioned. It likely failed to load the sbsar file. Switching back to an older version of Designer will probably fix this until a newer version of the plugin is released, which should be soon.
