When you select each image what icc profile is listed in the Info panel?
Thanks for the reply. They show up as RGB with the sRGB profile, just like they should. Both the ones that display wrong and the ones that display right.
They show up as RGB with the sRGB profile, just like they should.
If there's any transparency on the page the document's Transparency Blend Space will affect the display. If it is set to CMYK you are seeing the conversion of the sRGB images into the document's CMYK space. Make sure both documents are using the same blend space and their CMYK profies are the same (Edit>Assign Profiles...).
Also, if you turn on Overprint or Separation Preview any RGB objects are displayed in the doc's CMYK space whether there's transparency or not. And if you have Proof Colors turned on the RGB objects preview via the Proof Setup profile and not the document's profile