Hi Uwe, Colour settings are bog standard. I don't play with them at all as all the colour is controlled at the RIP for output and we've done our calibrations, so no need to change any default settings. I'd be surprised if the issue was in there, might be though. Why would it change white to overprint only in Table Graphic Cells though? It's almost like a Trap setting or preset? I'll do some tests with colour settings changed, to check that, as I really am lost at this stage. The 10.13.1 install was done Dec last year. The 10.12.6 install was done today. There is no further update options in Creative Cloud for InDesign for either Os, so I assume I have the most current version. Am working off MacBook HD, not network. Australian here, so using the UK or International version probably. I cannot see in the About box any specific version apart from 13.0.1. I've spent considerable time now trying all different combinations, file formats, new, copy, paste, preferences, etc and I get the same result, on 2 different macs and 2 different os. Bizzare. The fact you can replicate it, suggests the bug is in InDesign I think, else it would not do it all for you. Your OS is also 2 steps back from mine and you can still replicate it, so I doubt it's an OS update thing. It's also not occurring with a PDF saved from AI and placed in the Graphic Cell, so Postscript translation to IND should be working ok??? I also tried PS 2 and PS 3 out of AI - same result. So what is triggering it? What is it about the Table Graphic Cells that is actually changing the way the file is interpreted, sees it as a problem, and then decides that changing it is the best course of action? Why does it not simply read the file as is? Why does it need to make changes to overprint setting on imported files? Feels like a preference or some kind of actual 'feature' which is being tricked. At a loss currently, but I'll keep hunting to see if I can solve it. Cheers Cam
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