Pretty sure I know why, though I have yet to find a solution.
When I got the drive, the first thing I did (which I realize now was a mistake) was to delete the accompanying software because I thought it was useless and taking up space (can you blame me? it’s an oversized USB drive, it shouldn’t need developer created software to allow me to copy and past files onto it).
Regardless, now I need to find a way to reinstall the software that came with it at purchase. Is there any way to do that from this site (or online anywhere, for that matter)? I haven’t found anything useful yet.