I've made good progress so far but I can see that some templates are missing from my Offline Wikipedia. I only found that these templates were missing because I was checking random pages and noticed that the text "Template:abcdef" was displayed in red text. It has the alt text "Template:abcdef (page does not exist)". A couple of examples of missing templates are 'Template:Citation/make link' and 'Template:Gaps'.
Seems that I downloaded the corrupt enwiki-latest-pages-articles.xml.bz2 file in June, and this may be the reason for the missing templates. I hope to report back with a positive outcome once I have re-imported the data.
Kevin