Duplicate items
My Zotero (version 5.0.24) is not showing duplicate items: the Duplicate items list is empty, despite many exact duplicates having been imported. There are about 2000 items in the library, mostly pdfs (a single library organised in a dozen collections). Duplicates list was working OK previously; and Zotero working fine in every other respect, syncing smoothly etc. Any advice?
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https://www.zotero.org/support/getting_stuff_into_your_library
We're planning to add functionality in a future version to automatically clean up orphaned folders in the 'storage' directory. In the meantime, there are some third-party scripts that can clean up orphaned files, but you'd need to be comfortable running Perl or Python programs.
@takiefer: This thread has multiple issues, so you'd need to say more.