What is this and why?

Fresh set up win 10 Inkscape 1.4 inkstitch 3-10. Some jpegs but not all (2/6 to be exact) do it. I have other computers that do not have the same issues with the same image. I can open it but as soon as I go into params, save Modify nodes etc......this replaces the image. No codes or popup warnings....nothing. What is happening?