I'm running the latest Photoshop, and I'm on High Sierra. When I save a .tif with a spot channel it saves fine, and is there when I re-open it. When I save it as a PDF with a spot channel and reopen the file the spot channel is gone, I'm using the High Quality PDF preset and the spot channel box is checked in the save dialog window. I used to be able to do this without issue, but just noticed this being a problem in the last week or two. Any ideas?
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