MBLD not seeing contents of USB drive

I have a WD 25EE 6TB attached to my MBLD. The duo sees the drive but doesn’t show any volume.
I know it “takes a while” to register the contents, but it’s been hooked up for 14 hours now. When I plug it directly into my computer, it reads just fine.
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Hi Vic_Meisner,

We would suggest you to map the drive on your My Book Live device.

You could refer the information provided below for assistance.

https://support.wdc.com/knowledgebase/answer.aspx?ID=17870&lang=en

It is recommended to unlock the drive if any password is set before it can be used with a My Book Live Duo. The USB drives that you want to use should be formatted to any of the following file systems: NTFS, HFS+J, EXT2, EXT3, or EXT4.

The drive does not show up under Shares.

Found out drive was formatted incorrectly. Thanks!

SOLUTION:
I had the same problem today. I bought a new USB MyBook 6TB drive to use as a safepoint drive. It would not show as a share drive and as a result could not set up a safepoint drive.
I discovered after wasting many hours, that the new MyBook drive is formated as an exFat format and the MyBook Live Duo, does not recognize ExFat. I reformated it to NTFS on my PC and then connected it to the MB Live Duo and it recognized it. I am back in business.