Updated to v12, now cannot open SuperDrive bay door

Mac Pro 12core with 64gb ram. 48gb + 2TB assigned to Win7
Upgraded to V12 yesterday.
Lost the ability to eject or open the Optical Drive bay door on either WIN7 or on the MAC desktop. The options are grayed out, the F12 key presents the "open" symbol on the screen, but the bay door does not open.
This is true regardless of being on Mac desktop or WIN desktop.
However, when I close Parallels, I regain access to the bay door.
I can load a disc in, then re-launch Parallels and click on the bay drive and select/run from the drive, I just cannot open the danged door without fully exiting Pv12. Was not a problem in Pv11.
I do have the Optical ALT-selected to default to WIN. And that worked in Pv11. But not in Pv12.
Do I need to describe the horrors of working through a library of several hundred CDs that contain my off-line resources? Naw, you can see why I'm a tad discouraged with this "New Improved Feature."
Please advise.

 

Sorry, forgot to add "El Capitan"