I'm trying to convert an epub to a mobi for my son.
During the conversion, all images and fonts are lost. It seems to be basic plaintext.
The target epub is "Diary of An Awesome Friendly Kid" obtained from b-ok. It seems if I change the mobi file type to "both" or "new", the images and fonts are kept, but the kindle paperwhite I'm using can't load it. Same with AZWS3 (or whatever it's called

).
Any ideas? All options are on default with the exception of experimenting with mobi old/both/new.
Log thusly:
Spoiler:
Convert book 1 of 1 (Diary of an Awesome Friendly Kid: Rowley Jefferson's Journal)
Conversion options changed from defaults:
debug_pipeline: u'C:\\Users\\SupahSpankeh\\Calibre Library\\Debug'
read_metadata_from_opf: u'C:\\Users\\SUPAHS~1\\AppData\\Local\\Temp\\calib re_mxkdtm\\baflbr.opf'
output_profile: u'kindle_pw'
verbose: 2
cover: u'C:\\Users\\SUPAHS~1\\AppData\\Local\\Temp\\calib re_mxkdtm\\mqk0qu.jpeg'
Resolved conversion options
calibre version: 4.1.0
{'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'C:\\Users\\SUPAHS~1\\AppData\\Local\\Temp\\calib re_mxkdtm\\mqk0qu.jpeg',
'debug_pipeline': u'C:\\Users\\SupahSpankeh\\Calibre Library\\Debug',
'dehyphenate': True,
'delete_blank_paragraphs': True,
'disable_font_rescaling': False,
'dont_compress': False,
'duplicate_links_in_toc': False,
'embed_all_fonts': False,
'embed_font_family': None,
'enable_heuristics': False,
'expand_css': False,
'extra_css': None,
'extract_to': None,
'filter_css': u'',
'fix_indents': True,
'font_size_mapping': None,
'format_scene_breaks': True,
'html_unwrap_factor': 0.4,
'input_encoding': None,
'input_profile': <calibre.customize.profiles.InputProfile object at 0x057A7370>,
'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,
'mobi_file_type': u'old',
'mobi_ignore_margins': False,
'mobi_keep_original_images': False,
'mobi_toc_at_start': False,
'no_chapters_in_toc': False,
'no_inline_navbars': True,
'no_inline_toc': False,
'output_profile': <calibre.customize.profiles.KindlePaperWhiteOutp ut object at 0x057A7750>,
'page_breaks_before': u'/',
'personal_doc': u'[PDOC]',
'prefer_author_sort': False,
'prefer_metadata_cover': False,
'pretty_print': False,
'pubdate': None,
'publisher': None,
'rating': None,
'read_metadata_from_opf': u'C:\\Users\\SUPAHS~1\\AppData\\Local\\Temp\\calib re_mxkdtm\\baflbr.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,
'share_not_sync': False,
'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': '[]',
'unsmarten_punctuation': False,
'unwrap_lines': True,
'use_auto_toc': False,
'verbose': 2}
InputFormatPlugin: EPUB Input running
on C:\Users\SUPAHS~1\AppData\Local\Temp\calibre_mxkdt m\_ovusk.epub
Found HTML cover titlepage.xhtml
Input debug saved to: C:\Users\SupahSpankeh\Calibre Library\Debug\input
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Referenced file u'styles/XXXXXXXXXXXXXXXX' not found
Reading TOC from NCX...
Parsed HTML written to: C:\Users\SupahSpankeh\Calibre Library\Debug\parsed
Merging user specified metadata...
Detecting structure...
Structured HTML written to: C:\Users\SupahSpankeh\Calibre Library\Debug\structure
Flattening CSS and remapping font sizes...
Source base font size is 11.99996pt
Removing fake margins...
Found 2544 items of level: div_2
Found 2317 items of level: div_3
Found 227 items of level: div_1
div_2 left margin stats: Counter()
div_2 right margin stats: Counter()
div_3 left margin stats: Counter({u'': 2317})
div_3 right margin stats: Counter({u'': 2317})
div_1 left margin stats: Counter({u'': 202})
div_1 right margin stats: Counter({u'': 202})
Cleaning up manifest...
Trimming unused files from manifest...
Trimming u'titlepage.xhtml' from manifest
Processed HTML written to: C:\Users\SupahSpankeh\Calibre Library\Debug\processed
Creating MOBI Output...
Serializing resources...
Creating MOBI 6 output
Generating in-line TOC...
Applying case-transforming CSS...
Parsing manglecase.css ...
Parsing tocstyle.css ...
Rasterizing SVG images...
Converting XHTML to Mobipocket markup...
Serializing markup content...
Compressing markup content...
Generating MOBI index for a book
MOBI output written to C:\Users\SUPAHS~1\AppData\Local\Temp\calibre_mxkdt m\mhycun.mobi