Condition will never trigger?
Leaning CSL so please bear with. Am I correct in saying that this condition will never trigger because citation type can't be both chapter and paper-conference and this is an AND check? Suspect match="any" is missing?
<code>
</code>
tags.<if type="chapter paper conference">
in which case you're correct, that'll always be false and is a problem in the style. We recently fixed a whole batch of these, so make sure you're using the last version of the style.
<if type="chapter paper-conference" >
<text variable="title" suffix=". "/>
</if>