Unable to send books to SD card on new Nook (BNTV460)

Calibre correctly recognizes my new Nook (BNTV460) and is able to see what books are on the SD card as well as in main memory. It can send books to the Nook's main memory but fails when trying to send to the SD card.

The error log says:

calibre, version 3.40.1
ERROR: Error: Error communicating with device

Failed to create folder named Books in (u'SD card',) with error: 2:PTP Layer error 2002: LIBMTP_Create_Folder: Could not send object info.
2:Error 2002: PTP: General Error

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 87, in run
File "site-packages/calibre/gui2/device.py", line 591, in _upload_books
File "site-packages/calibre/devices/mtp/driver.py", line 427, in upload_books
File "site-packages/calibre/devices/mtp/driver.py", line 403, in ensure_parent
File "site-packages/calibre/devices/mtp/base.py", line 26, in synchronizer
File "site-packages/calibre/devices/mtp/unix/driver.py", line 380, in create_folder
DeviceError: Failed to create folder named Books in (u'SD card',) with error: 2:PTP Layer error 2002: LIBMTP_Create_Folder: Could not send object info.
2:Error 2002: PTP: General Error