cannot read enceypted HDD

[x_kzy_xd]

I have an external hard drive that's encrypted with CoreStorage. When I plug it in, I get a prompt for my password. After I enter it, the screen freezes for 30 sec or so. Then the dialog box disappears, and my drive is still not mounted.

I try diskutil cs list in Terminal. It shows:

Logical Volume CDC1923E-FBD7-4CDA-B6B3-D3E0D1B6D997

---------------------------------------------------

Disk: disk3

Status: Online

Size (Total): 1999683715072 B (2.0 TB)

Conversion Progress: Complete

Revertible: Yes (unlock and decryption required)

LV Name: SamsungT3

Volume Name: SamsungT3

Content Hint: Apple_HFS

Then I try:
diskutil cs unlockVolume CDC1923E-FBD7-4CDA-B6B3-D3E0D1B6D997 -stdinpassphrase
And it tells me:

CDC1923E-FBD7-4CDA-B6B3-D3E0D1B6D997 is already unlocked and is attached as disk3

And then I try "diskutil list" in Terminal. It returns:

/dev/disk3 (external, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS SamsungT3 +2.0 TB disk3

Logical Volume on disk2s2

CDC1923E-FBD7-4CDA-B6B3-D3E0D1B6D997

Unlocked Encrypted

And yet I still dont see the disk in finder. Any ideas? I'm on macOS Sierra 10.12.6. Tried it both on a Macbook Air and a 2016 tMBP