I was working with one file, the toc, but earlier I had changed the heading numbers to correct a problem with duplicates which meant I needing to change most of the equivalent headings in many xhtml files. However, with the 0.4 save, all of the hotlinks worked with my pc ADE even though validation seemed to incorrectly list xhtml file numbers of the headings.
Probably the only way to troubleshoot at this time is if a similar trouble occurs again. Then I can save the offending epub, and also run the toc regeneration to see if that solves the problem. Perhaps it will.
Bob
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