Same USB files listed twice - under USB and USB2 directories

Hi, I’m running v0.7 on a Pi Zero W and have my music on a USB flash drive. I noticed that each song is showing up twice, it seems the USB drive appears under both USB and USB2 directories.

I moved the flash drive to another USB port, and that seemed to correct the problem. The USB drive was now only listed once under USB3 and no more duplicates. But after running fine for maybe 45 minutes, maybe the system is rescanning/resetting the USB directories? Once again the flash drive is listed under both USB and USB2 directories even though it was not moved - and all songs are showing up twice again.

Is there a solution to get the USB drive files to only show up once?