Storage size on Extreme Portable SSD unusually large. 25 times larger than total file sizes

Portable SSD Extreme Portable SSD
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I am having a similar issue as OP. Using Mac OS, copied 54GB iphoto photoibrary from external HD and final result is over 300GB on extreme portable SSD. “Get Info” on folder is endless cycle of “calculating size” but DaisyDisk quickly reveals ultimate size. 54GB iphoto photolibrary is same size on multiple other external harddrives.