hello @thestraycat @r_gigante, I am experiencing this (or VERY similar). I receive the following when trying to start up all of my render nodes (S22). They start up with or without xparticles (but never load the plug-in). I can render on all nodes, and use Arnold as a plug-in as well, no issues loading that.
Insydium bumped it back to Maxon, who has escalated it. The bridge for Xparticles is not loading. I've been troubleshooting for 4 weeks. It's in the developers hands now, but any further info would be super appreciated. My 20 nodes are useless at the moment for XParticles, which is no good!