It's the same as the most recent screenshot except that what's plugged into the y_index input of the Noise node has changed, and now unused node that was plugged in has been deleted. I also changed the number of tiles and the mortar thickness.

Set Value_1 of Math_Functions on the right to the number of tiles you want, but don't change anything else in the three columns of nodes at the right. You can change the colour/value of any parameters in the Noise, ColorRamp and Tile nodes that don't have an anything plugged into them. The x_index, y_index, and z_index values in the Noise node and the Mortar_Thickness in the Tile node are fair game too.

FireFly and SuperFly renders again. You can see those artefacts I mentioned in the FireFly render again - definitely similar to what I spotted back in Aug 2019

 

I can't attach mt5 or txt files to this post, but I plan to upload the shader here in Renderosity's FreeStuff

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The 3Dcheapskate (also available in DAZ and HiveWire3D flavours) occasionally posts sensible stuff. Usually by accident.
And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU.