Hi,

I'm trying to add a book to my Calibre library but after it is added the book is unreadable. I have added other volumes of this series in the past with no issues. By the way, I purchased this ebook (EPUB) from Deseret Book. Below is the Calibre debug log.

calibre Debug log
calibre 4.16 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 7, 0) && EpubMerge (2, 9, 0) && KePub Metadata Reader (3, 2, 7) && KePub Metadata Writer (3, 2, 7) && KePub Input (3, 2, 7) && KindleUnpack - The Plugin (0, 82, 1)
calibre 4.16 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.18362-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 7, 0) && EpubMerge (2, 9, 0) && KePub Metadata Reader (3, 2, 7) && KePub Metadata Writer (3, 2, 7) && KePub Input (3, 2, 7) && KindleUnpack - The Plugin (0, 82, 1)
Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 90.0253164557 x 90.1013513514
Using calibre Qt style: True
[0.00] Starting up...
[0.00] Showing splash screen...
[0.36] splash screen shown
[0.36] Initializing db...
[0.38] db initialized
[0.38] Constructing main UI...
EpubMerge: DEBUG: 2020-05-18 14:21:02,578: calibre_plugins.epubmerge.epubmerge_plugin(157): macmenuhack file_path:C:\Users\AppData\Roaming\calibre\plugins\fanficfare_macmenuhack.txt
[2.28] main UI initialized...
[2.28] Hiding splash screen
[35.97] splash screen hidden
[35.97] Started up in 35.97 seconds with 89 books
stdout+stderr from file dialog helper: ['', '']
piped data from file dialog helper: ['%\x88\x03\x89\x1f \xac\x94\x18\xc1*$!\xf7*\xe5|O\xe8\x0ea\xf8\xe99\xda\x8b\xb8\xbf\xcfk', 'E:\eBook Testing\Deseret Book\The Joseph Smith Papers - Documents Vol 9\Joseph Smith Papers - Documents Volume 9.epub']
DeDRM v6.7.0: Trying to decrypt Joseph Smith Papers - Documents Volume 9.epub
DeDRM v6.7.0: Verifying zip archive integrity
DeDRM v6.7.0: “Joseph Smith Papers - Documents Volume 9.epub� is neither an Adobe Adept nor a Barnes & Noble encrypted ePub
Running file type plugin DeDRM failed with traceback:
Traceback (most recent call last):
File "site-packages\calibre\customize\ui.py", line 172, in _run_filetype_plugins
File "calibre_plugins.dedrm.init", line 636, in run
File "calibre_plugins.dedrm.init", line 412, in ePubDecrypt
DeDRMError: DeDRM v6.7.0: Couldn't decrypt after 1.0 seconds. DRM free perhaps?
Added The Joseph Smith Papers: Documents, Volume 9: December 1841–April 1842 to db in: 0.2
Added 1 books in 2.8 seconds

My computer:
HP Pavillion dv7
Intel Core I7 processor
Radeon discrete graphics card

Any help would be appreciated.

Thanks!!