Hahaa more complex than that buddy..
The issue is more likely because of the Manage Locations.
After updated to Google File Stream version 45.0.12.0 and Boxcryptor 2.43.1441, the problem is still there. What I did is that I look at Boxcryptor Settings/Locations and I saw G:Google File Drive Stream listed in the Manage Locations. I was unable to remove it. I click on Advanced, de-selected Auto Detect and go back to Location and could not remove G:Google File Drive Stream.
I quit Google Drive 45.0.12.0. Then go to Boxcryptor settings and removed G:Google File Drive Stream from Manage Locations.. But once I restart the Google Drive, G:Google File Drive Stream appears in Manage Locations again.
So I go to my Google Drive app settings and click "Disconnect account." I then removed G:Google File Drive Stream from Manage Locations.
Then I sign in again. Boxcryptor no longer automatically mount the drive. So I click select and mount G:\ Google Drive(G). It no longer shows as G:Google File Drive Stream.
After this, it then works perfectly fine.