[npr]

Checking the file "metadata.opf" in calibre, most of my books don't have a entry for <meta name="calibre:user_metadata:#subtitle ...
Only the most recent book I loaded in calibre and one I've just deleted and reloaded as a test has that entry.
I've tried reloading both books which has that entry but still no subtitle on first connection.

<meta name="calibre:user_metadata:#subtitle" content="{&quot;table&quot;: &quot;custom_column_18&quot;, &quot;column&quot;: &quot;value&quot;, &quot;datatype&quot;: &quot;composite&quot;, &quot;is_multiple&quot;: &quot;,&quot;, &quot;kind&quot;: &quot;field&quot;, &quot;name&quot;: &quot;Subtitle&quot;, &quot;search_terms&quot;: [&quot;#subtitle&quot;], &quot;label&quot;: &quot;subtitle&quot;, &quot;colnum&quot;: 18, &quot;display&quot;: {&quot;composite_template&quot;: &quot;{#reading_hours} hours&quot;, &quot;composite_sort&quot;: &quot;text&quot;, &quot;make_category&quot;: false, &quot;contains_html&quot;: false, &quot;composite_show_in_comments&quot;: false, &quot;description&quot;: &quot;&quot;}, &quot;is_custom&quot;: true, &quot;is_category&quot;: false, &quot;link_column&quot;: &quot;value&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;is_csp&quot;: false, &quot;is_editable&quot;: true, &quot;rec_index&quot;: 25, &quot;#value#&quot;: &quot;7.00 hours&quot;, &quot;#extra#&quot;: null, &quot;is_multiple2&quot;: {&quot;cache_to_list&quot;: &quot;,&quot;, &quot;ui_to_list&quot;: &quot;,&quot;, &quot;list_to_ui&quot;: &quot;, &quot;}}"/>

@Phil_C, thanks agin that's the same as I've been using.