We have a weird issue with Acrobat DC PRO (and DC Reader, too) on a Mac Pro opening with stale versions of a file. For example, using InDesign (CC 2017) say we export to PDF, save it on the desktop (or a network share does the same thing). Open it in Acrobat by double-clicking it on the desktop. Looks good. Close Acrobat. Back to InDesign to make a change. Export again, same location, say REPLACE. Double-click the file on the desktop and up comes the PREVIOUS version of the file! Using PREVIEW, we can see the file itself is the correct, newer one. If we change the name of the file, it opens correctly and shows the new version. Rename it back to the original file name, and it opens the previous version again. Acrobat Reader DC does the same thing (we use OPEN with... to open with Reader). Somehow, Acrobat is caching the file and not updating its cache. Acrobat has this behavior on 2 of the 5 Mac Pro systems in our office. It seems there must be some sort of cache file or folder that holds these somewhere, but I've done a good bit of research and cannot find any info, apart from a post from another user that had the same issue, but no answer. Also, we found that logging out of macOS (10.12.6) and logging back in, the file in question opens correctly. But do the same thing (save, modify, resave/replace) and the issue happens every time. So, is there a cache folder for Acrobat or some other reason that this might be happening? Thanks.
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