Found another case - created an epub catalog for a small virtual library and the following got left in _CalTemp
C:\_CalTemp\calibre_eqfhzc\cono2h_epub_mobi_catalog\content\stylesheet.css C:\_CalTemp\calibre_eqfhzc\cono2h_epub_mobi_catalog\DefaultCover.jpg
No need to respond unless to ask for more info
BR
Found another case - created an epub catalog for a small virtual library and the following got left in _CalTemp
C:\_CalTemp\ calibre_ eqfhzc\ cono2h_ epub_mobi_ catalog\ content\ stylesheet. css calibre_ eqfhzc\ cono2h_ epub_mobi_ catalog\ DefaultCover. jpg
C:\_CalTemp\
No need to respond unless to ask for more info
BR