using version 1.35, and 100+ successful conversions. I've finally hit one "book" that will not convert. I get the same error under windows or linux
Here is the output log
Spoiler:
calibre, version 1.35.0 (linux2, isfrozen: True)
Conversion Error: Failed: Convert book 1 of 1 (The Betrayed Series: Ultimate Omnibus Collection with EXCLUSIVE post-Shiva short story (The Complete Betrayed Series))
Convert book 1 of 1 (The Betrayed Series: Ultimate Omnibus Collection with EXCLUSIVE post-Shiva short story (The Complete Betrayed Series))
Resolved conversion options
calibre version: 1.35.0
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'change_justification': u'original',
'chapter': u"//*[((name()='h1' or name()='h2') and re:test(., '\\s*((chapter|book|section|part)\\s+)|((prolog|pr ologue|epilogue)(\\s+|$))', 'i')) or @class = 'chapter']",
'chapter_mark': u'pagebreak',
'comments': None,
'cover': u'/tmp/calibre_1.35.0_tmp_XB5OU5/RD4Njz.jpeg',
'debug_pipeline': None,
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'dont_split_on_page_breaks': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'epub_flatten': False,
'epub_inline_toc': False,
'epub_toc_at_end': False,
'expand_css': False,
'extra_css': None,
'extract_to': None,
'filter_css': u'',
'fix_indents': True,
'flow_size': 260,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x18d9cd0>,
'insert_blank_line': False,
'insert_blank_line_size': 0.5,
'insert_metadata': False,
'isbn': None,
'italicize_common_cases': True,
'keep_ligatures': False,
'language': None,
'level1_toc': None,
'level2_toc': None,
'level3_toc': None,
'line_height': 0.0,
'linearize_tables': False,
'margin_bottom': 5.0,
'margin_left': 5.0,
'margin_right': 5.0,
'margin_top': 5.0,
'markup_chapter_headings': True,
'max_toc_links': 50,
'minimum_line_height': 120.0,
'no_chapters_in_toc': False,
'no_default_epub_cover': False,
'no_inline_navbars': False,
'no_svg_cover': False,
'output_profile': <calibre.customize.profiles.TabletOutput object at 0x18cd850>,
'page_breaks_before': u"//*[name()='h1' or name()='h2']",
'prefer_metadata_cover': False,
'preserve_cover_aspect_ratio': False,
'pretty_print': True,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'/tmp/calibre_1.35.0_tmp_XB5OU5/GSoSvr.opf',
'remove_fake_margins': True,
'remove_first_image': False,
'remove_paragraph_spacing': False,
'remove_paragraph_spacing_indent_size': 1.5,
'renumber_headings': True,
'replace_scene_breaks': u'',
'search_replace': '[]',
'series': None,
'series_index': None,
'smarten_punctuation': False,
'sr1_replace': None,
'sr1_search': None,
'sr2_replace': None,
'sr2_search': None,
'sr3_replace': None,
'sr3_search': None,
'start_reading_at': None,
'subset_embedded_fonts': False,
'tags': None,
'timestamp': None,
'title': None,
'title_sort': None,
'toc_filter': None,
'toc_threshold': 6,
'toc_title': None,
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: MOBI Input running
on /tmp/calibre_1.35.0_tmp_XB5OU5/dLyuYC.azw3
Found KF8 MOBI of type 'standalone'
Extracting text...
Parsing all content...
Parsing text/part0101.html ...
Parsing text/part0078.html ...
Parsing text/part0093.html ...
Parsing text/part0147.html ...
Parsing text/part0017.html ...
Parsing text/part0053.html ...
Parsing text/part0045.html ...
Parsing text/part0140.html ...
Parsing text/part0117.html ...
Parsing text/part0091.html ...
Parsing text/part0115.html ...
Parsing text/part0034.html ...
Parsing text/part0061.html ...
Parsing text/part0134.html ...
Parsing text/part0088.html ...
Parsing text/part0089.html ...
Parsing styles/0001.css ...
Parsing text/part0069.html ...
Parsing text/part0113.html ...
Parsing text/part0024.html ...
Parsing text/part0057.html ...
Parsing text/part0012.html ...
Parsing text/part0127.html ...
Parsing text/part0097.html ...
Parsing text/part0011.html ...
Parsing text/part0030.html ...
Parsing text/part0100.html ...
Parsing text/part0087.html ...
Parsing text/part0159.html ...
Parsing text/part0120.html ...
Parsing text/part0004.html ...
Parsing text/part0046.html ...
Parsing text/part0051.html ...
Parsing text/part0033.html ...
Parsing text/part0052.html ...
Parsing text/part0099.html ...
Parsing text/part0067.html ...
Parsing text/part0123.html ...
Parsing text/part0064.html ...
Parsing text/part0029.html ...
Parsing text/part0055.html ...
Parsing text/part0124.html ...
Parsing text/part0023.html ...
Parsing text/part0049.html ...
Parsing text/part0158.html ...
Parsing text/part0083.html ...
Parsing text/part0047.html ...
Parsing text/part0119.html ...
Parsing text/part0102.html ...
Parsing text/part0066.html ...
Parsing text/part0139.html ...
Parsing text/part0138.html ...
Parsing text/part0050.html ...
Parsing text/part0111.html ...
Parsing text/part0018.html ...
Parsing text/part0086.html ...
Parsing text/part0143.html ...
Parsing text/part0015.html ...
Parsing text/part0122.html ...
Parsing text/part0048.html ...
Parsing text/part0003.html ...
Parsing text/part0125.html ...
Parsing text/part0014.html ...
Parsing text/part0108.html ...
Parsing text/part0160.html ...
Parsing text/part0085.html ...
Parsing text/part0141.html ...
Parsing text/part0131.html ...
Parsing text/part0137.html ...
Parsing text/part0133.html ...
Parsing text/part0026.html ...
Parsing text/part0040.html ...
Parsing text/part0013.html ...
Parsing text/part0106.html ...
Parsing text/part0151.html ...
Parsing text/part0039.html ...
Parsing text/part0071.html ...
Parsing text/part0082.html ...
Parsing text/part0031.html ...
Parsing text/part0041.html ...
Parsing text/part0148.html ...
Parsing text/part0073.html ...
Parsing text/part0104.html ...
Parsing text/part0094.html ...
Parsing text/part0075.html ...
Parsing text/part0096.html ...
Parsing text/part0043.html ...
Parsing text/part0007.html ...
Parsing text/part0136.html ...
Parsing text/part0070.html ...
Parsing text/part0056.html ...
Parsing text/part0132.html ...
Parsing text/part0002.html ...
Parsing text/part0016.html ...
Parsing text/part0110.html ...
Parsing text/part0009.html ...
Parsing text/part0028.html ...
Parsing text/part0107.html ...
Parsing text/part0054.html ...
Parsing text/part0118.html ...
Parsing text/part0042.html ...
Parsing text/part0020.html ...
Parsing text/part0059.html ...
Parsing text/part0037.html ...
Parsing text/part0114.html ...
Parsing text/part0005.html ...
Parsing text/part0084.html ...
Parsing text/part0130.html ...
Parsing text/part0157.html ...
Parsing text/part0095.html ...
Parsing text/part0121.html ...
Parsing text/part0022.html ...
Parsing text/part0072.html ...
Parsing text/part0144.html ...
Parsing text/part0008.html ...
Parsing text/part0044.html ...
Parsing text/part0155.html ...
Parsing text/part0128.html ...
Parsing text/part0077.html ...
Parsing text/part0065.html ...
Parsing text/part0010.html ...
Parsing text/part0098.html ...
Parsing text/part0076.html ...
Parsing text/part0060.html ...
Parsing text/part0156.html ...
Parsing text/part0126.html ...
Parsing text/part0038.html ...
Parsing text/part0109.html ...
Parsing text/part0150.html ...
Parsing text/part0129.html ...
Parsing text/part0032.html ...
Parsing text/part0001.html ...
Parsing text/part0079.html ...
Parsing text/part0103.html ...
Parsing text/part0135.html ...
Parsing text/part0006.html ...
Parsing text/part0112.html ...
Parsing text/part0074.html ...
Parsing text/part0068.html ...
Parsing text/part0025.html ...
Parsing text/part0000.html ...
Parsing text/part0027.html ...
Parsing text/part0062.html ...
Parsing text/part0081.html ...
Parsing text/part0154.html ...
Parsing text/part0021.html ...
Parsing text/part0145.html ...
Parsing text/part0019.html ...
Parsing text/part0105.html ...
Parsing text/part0090.html ...
Parsing text/part0080.html ...
Parsing text/part0146.html ...
Parsing text/part0142.html ...
Parsing text/part0092.html ...
Parsing text/part0153.html ...
Parsing text/part0149.html ...
Parsing text/part0063.html ...
Parsing text/part0036.html ...
Parsing text/part0035.html ...
Parsing text/part0058.html ...
Parsing text/part0116.html ...
Parsing text/part0152.html ...
Referenced file u'text/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX' not found
Reading TOC from NCX...
Merging user specified metadata...
Detecting structure...
Flattening CSS and remapping font sizes...