After a little testing i've noticed some odd behavior, if i try to load the shader via the presets in the surfaces tab or from the content menu i get the errors i have explained above, but if i copy the Daz Uber and place the copy at anywhere else in my content tree, the shaders in that folder work, even though the originals still don't, not only that i have noticed that the folder has changed it's name at some point and used to be called Iray Uber not Daz Uber, i have no idea when this changed, or if this is new and the cause of the issue? can anyone check this?

Getting old and still making "art" without soiling myself, now that's success.