When merging documents some images turn black and white

It appears to be JPG files and going through the settings there is really nothing (that I’ve found) to remedy this. So if i throw a jpg picture into a word document and convert then it turns black and white (I’ve noticed only on previous black and white pictures not color) or if I take a PDF and try and print to pdf again with the jpg in there then it’ll do that same thing. And to clarify the pictures colors are reversing, so white background and black text to black background and white text.