[Maggie-Me]

I got the same problem just after the update but it works if I pick CSV, only EPUB doesn't (I didn't try the other choices only epub and csv)

ERROR: Conversion Error: <b>Failed</b>: Generate catalog

Generate catalog
Catalog_EPUB_MOBI(): Generating epub for sony in GUI environment
connected_device: 'None'
book count: 7
Sections: Authors, Titles, Descriptions
opts:
authorClip: 100
catalog_title: u'My Library'
connected_kindle: False
descriptionClip: 380
exclude_book_marker: u':'
exclude_genre: u'.'
exclude_tags: u'~,Catalog'
header_note_source_field: ''
merge_comments: '::True'
output_profile: 'sony'
read_book_marker: u'#read:+'
search_text: None
sort_by: None
sort_descriptions_by_author: True
sync: False
thumb_width: '1.00'
wishlist_tag: u'Wishlist'
invalidating cache at 'C:\Users\Joe Hilley\AppData\Roaming\calibre\caches\catalog\thum bs.zip'
thumb_width changed: -1.00" => 1.00"
Python function terminated unexpectedly
[Error 32] The process cannot access the file because it is being used by another process: u'C:\\Users\\Joe Hilley\\AppData\\Roaming\\calibre\\caches\\catalog \\thumbs.zip' (Error Code: 1)
Traceback (most recent call last):
File "site.py", line 103, in main
File "site.py", line 85, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 107, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 61, in gui_catalog
File "site-packages\calibre\library\catalog.py", line 5014, in run
File "site-packages\calibre\library\catalog.py", line 1009, in __init__
WindowsError: [Error 32] The process cannot access the file because it is being used by another process: u'C:\\Users\\#########\\AppData\\Roaming\\calibre\ \caches\\catalog\\thumbs.zip'