Problem with Harvard style: titles of articles disappeared from bibliography

I’m baffled. They were there one minute, and now they’re not. The entire bibliography list shows author, vol/issue, and publication title – but not the title of the article/document. Has anyone seen this problem before?

Have you looked at the style?  Are you sure it is A) the same style you were using and B) that it hasn’t been changed?  Open it in th edit mode.  Is the title specified in the bibliography template?

Thank you!