Stablebit Scanner prevents the ejection of external hard drives

[Digitoxin]

Whenever I attach an external hard drive to my server, Stablebit Scanner prevents the ejection of the hard drive.  I get the following error in the registry when I attempt to eject the drive.

The application \Device\HarddiskVolume8\Program Files (x86)\StableBit\Scanner\Service\Scanner.Service.exe with process id 3116 stopped the removal or ejection for the device USB\VID_174C&PID_55AA\MSFT30123456789202.

I have to stop the Stablebit Scanner service, eject the drive, and then restart the service.

Update:  

I tested this with a 5 drive external enclosure which has individual power buttons for each drive.  This issue only occurs with the first drive I power up.   If I power up drive 1 and then drive 2, Stablebit scanner is only preventing me from ejecting drive 1.  I can successfully eject drive 2.  If I power up drive 2 first and then drive 1, drive 2 is now the drive locked by Stablebit scanner.  Drive 1 can be ejected fine.   Same with the other drives in the enclosure.  The drive I power up first is the drive that I an unable to eject because of Stablebit scanner.   The rest of the drives eject fine.

Edited November 16, 2020 by Digitoxin
Updates

[Umfriend]

Can you see if Scanner is scanning that drive at that time?

[Digitoxin]

It is not.  I plugged in several drives.  The scanner was not scanning any of them.  I was not able to eject any of them until I stopped the scanner service.