My image texture displays correctly in material preview but not in 3D viewport I have applied such image textures before without any problem but with the eyes of this character I simply cannot get the image texture to appear in the 3D viewport in either Eevee or Cycles. I feel sure I have done something daft or not done something simple but I have gone over everything several times and searched online yet cannot find what I am doing wrong.
I have attached an image showing my setup.
All help appreciated.
I am closing this request for any further comments since no more suggestions have been forthcoming and nothing I tried made any difference to the lack of display in the viewport. I reluctantly deleted the eyes and made new ones applying the same image texture, in the same way and they work perfectly well.
I guess I will never know what the problem was.
Thanks for looking.