Connected usb hard drive to hirose 250oa. Won't load all albums or tracks

Coming from wimm ultra where all my music from my hard drive was all there after a scan. I bought the hifirose. Have done a db scan many times. Can not find alot of my albums or tracks. Alot missing. I put the hard drive back to my computer. There all there. What am I doing wrong?
What the hell is wrong with machine.
Very frustrating to say the least.
Anyone else have these issues. I’m starting to regret my purchase.