Empty @bibtex@ field

Hello everyone,

we are running papercite on our workgroup website to handle our list of publications (http://pln-workgroup.user.jacobs-university.de/publications/). For a couple of entries, the [Show BibTeX] Link just opened an empty grey box. I managed to avoid this, by changing the default-bibtex.tpl to

@?bibtex@
	<a href="javascript:void(0)" id="papercite_@papercite_id@" class="papercite_toggle">[Bibtex]</a>
	<div class="papercite_bibtex" id="papercite_@papercite_id@_block"><pre><code class="tex bibtex">@bibtex@</code></pre></div>
@;bibtex@

So the problem is in fact that for some entries, the @bibtex@ entry is not properly generated (while the entry is displayed correctly in the publication list). I could not find any errors or commonalities between the bibtex entries, where this happens and no error is thrown during parsing.

Any ideas what that is?

Regards,

Henning

https://ww.wp.xz.cn/plugins/papercite/