Adobe InDesign CC v 13.0 - macOS 10.9 - 10.13
I feel like this was a previously fixed bug in an older version, but may well be back with the latest 2018 update.
After upgrading InDesign to v 13.0, we are now not longer able to open a copy of files in use, neither duplicate the file in Finder.
When we try to open a copy we get this error message: “Cannot open file [filename.indd]. The file [filename.indd] is incompatible with Adobe InDesign (Error code: 14).”
When we try to duplicate the file, we get this error message: “The operation can't be completed because the item [filename.indd] is in use.”
Felix von Pless commented
I have the same issue with error code 14.
It is annoying because I cannot open a file that is in use by someone else.