HI

Sorry for the problems. The source of the error was a bad management of a setting used only for the face in EZSkin's configuration:

The fact that that error popped up on your system lead me to think that the plugin was not up to date, I have probably forgotten to update the version at disposal.
Sorry for this.
So just to be sure:

- EZSkin's last version: https://kdrive.digital-paradize.com/app/share/116364/ae7a51aa-8f4f-4792-99ff-abdd1b2a863b

- The last version of the PrincipledBSDF version of human skin: https://kdrive.digital-paradize.com/app/share/116364/7a305ed4-4dec-48a5-a61e-58ab586e9002

I've tested on a V4, with both checked and unchecked, and it ran fine.

Historically, on EZSkin's versions for Python2.7, there was a small node setup that SnarlyGribbly built to simulate human pores. One day, Ghosthip said in a thread that he was not finding it convincing enough. That's why there's an option in the common part, not active by default, to use the human pores simulation, and a separate option only for the face. Note that I can easily extend this setup to the rest of the skin but I put it on the face only, thinking that it was probably more for close-up of a face.
And that Ghostship's roughness is not active by default.

I have never encountered that error because I'm using the given Bump almost systematically.

Don't hesitate to tell me  if you encounter another error 

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