... A simplified piece of code - the result still depends on presence of "\definehead[sectionMiddle][section]":

----
\definehead[chapterMiddle][chapter]
\setuphead[chapterMiddle][align=middle]

\definehead[sectionMiddle][section] % Try to comment this line!

\definecombinedlist[content][chapter,chapterMiddle]

%%%

\starttext
   \placecontent
   \page

   \chapter{Cha1}
   \chapterMiddle{ChaM}
   \chapter{Cha3}
\stoptext
----

Any idea?

Best regards,

Lukas


-- 
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o.      [mailto:pontex@pontex.cz] [http://www.pontex.cz]
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