Can't mount NTFS drive from dock

I have a handful of *internal* NTFS drives that I've pulled out of various machines, and a Thermaltake BlacX Duet doc. I loaded the trial NTFS software and have been able to read these drives consistently. The trial period expired, and I purchased a license and now I'm getting very inconsistent behavior. I can read a drive, then I eject it from my Mac, *then* pull it out of the dock, I get an error that the drive wasn't ejected properly, and then I can't read the drive again. I loaded the trial software on another computer and was then able to read the drive. I was also able to eject it, and then I could read it on the first computer (with the licensed copy of NTFS software). I've tried rebooting, different cables, different USB ports. Not sure what's at play, but I can't reliably read my drives. Any suggestions? Is it more about the dock?

 

Hello coraline99,
please write to Paragon support team. They will try to help you.