Lightroom versions 3.0 and 3.1 both have the same bug – exporting multiple photos (457 in my case) creates numerous duplicates into export folder. This fills up my hard drive space fast and still doesn't export all of the photos.
Eventhough I'd delete the duplicates I still haven't got all of the photos exported. It somehow exports 153 photos and then starts a new round naming the duplicates as _01, _02, _03 etc.
I'm using iMac Pro, Mojave 10.14.6 and Lightroom 3.1
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