Duplicates in Photos after Importing Pics from iPhone to Mac
I have imported the photos and videos from iPhone to Mac's Photos. However, next day when I plug in again, most of the photos and videos appear again the the section that "import all new items".
Before, it can successfully identify which are new and old, but it currently wants to input photos that are already input in Photos.
Any idea why this happens and how to solve?
MacBook Pro 15", macOS 10.15