[tomsem]

I have an AZW/MOBI file will not convert to anything (tried AZW3, EPUB2, EPUB3. Always gets stuck on 'Flattening...' step. It is fairly large (59.2MB). It loaded in Viewer. Downloaded fresh copy from Amazon, same thing.

Anything to check/try?

Thank you.

Spoiler:

Convert book 1 of 1 (Complete Works of Jules Verne)
DeDRM v10.0.3: Trying to decrypt 3_3j_tmw.mobi
Using Library AlfCrypto Python
MobiDeDrm v1.1.
Copyright © 2008-2020 The Dark Reverser, Apprentice Harper et al.
Decrypting Mobipocket 5 ebook: Delphi Complete Works of Jules Verne (Illustrated)
Found 4 keys to try after 0.2 seconds
Crypto Type is: 0
This book is not encrypted.
Decryption succeeded after 0.2 seconds
DeDRM v10.0.3: Finished after 0.3 seconds
Conversion options changed from defaults:
output_profile: 'ipad3'
read_metadata_from_opf: '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/lmw4iosd.opf'
verbose: 2
cover: '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/_f2m4wre.jpeg'
epub_version: '3'
Resolved conversion options
calibre version: 6.15.1
{'asciiize': False,
'author_sort': None,
'authors': None,
'base_font_size': 0.0,
'book_producer': None,
'change_justification': 'original',
'chapter': "//*[((name()='h1' or name()='h2') and re:test(., "
"'\\s*((chapter|book|section|part)\\s+)|((prolog|p rologue|epilogue)(\\s+|$))', "
"'i')) or @class = 'chapter']",
'chapter_mark': 'pagebreak',
'comments': None,
'cover': '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/_f2m4wre.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_max_image_size': 'none',
'epub_toc_at_end': False,
'epub_version': '3',
'expand_css': False,
'extra_css': None,
'extract_to': None,
'filter_css': '',
'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 0x10dc2b3a0>,
'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.iPad3Output object at 0x10dc2afe0>,
'page_breaks_before': "//*[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': '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/lmw4iosd.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': '',
'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,
'transform_css_rules': '[]',
'transform_html_rules': '[]',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
DeDRM v10.0.3: Trying to decrypt fjraolmo.mobi
MobiDeDrm v1.1.
Copyright © 2008-2020 The Dark Reverser, Apprentice Harper et al.
Decrypting Mobipocket 5 ebook: Delphi Complete Works of Jules Verne (Illustrated)
Found 4 keys to try after 0.1 seconds
Crypto Type is: 0
This book is not encrypted.
Decryption succeeded after 0.1 seconds
DeDRM v10.0.3: Finished after 0.2 seconds
InputFormatPlugin: MOBI Input running
on /var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/hogvg5vu.mobi
Extracting text...
Adding anchors...
Extracting images...
Cleaning up HTML...
Parsing HTML...
Converting style information to CSS...
Creating OPF...
Parsing all content...
Parsing styles.css ...
Parsing index.html ...
Forcing index.html into XHTML namespace
Reading TOC from NCX...
Merging user specified metadata...
Detecting structure...
Flattening CSS and remapping font sizes...