[xraves]

After a choose a book to add calibre freezes.

Then I kill the process "calibre-file-dialog.exe" and after I receive an error pop-up if the following:

calibre, version 3.21.0
ERRO: Exceção sem tratamento: <b>Exception</b>:File dialog failed (return code 1):

calibre 3.21 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.16299-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.16299')
Python 2.7.12+
Windows: ('10', '10.0.16299', 'SP0', u'Multiprocessor Free')
Interface language: pt_BR
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\add.py", line 424, in add_books
File "site-packages\calibre\gui2\win_file_dialogs.py", line 252, in choose_files
File "site-packages\calibre\gui2\win_file_dialogs.py", line 206, in run_file_dialog
Exception: File dialog failed (return code 1):


Is there any solutions ?