[NTG-context] Can't generate an epub - what am I doing wrong?

Hello all, my problem is as in the topic;). The minimal example from the wiki works fine, but this does not: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \setupbackend[export=yes,xhtml=yes] \settaggedmetadata [title=My Document, author=A. U. Thor] \starttext \startchapter[title={First chapter}] \input tufte \stopchapter \startchapter[title={Second chapter}] \input knuth \stopchapter \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% The resulting epub file (after the mtxrun, of course) does not contain any metadata; also, there is no chapter structure whatsoever. What am I missing? TIA, -- Marcin Borkowski http://mbork.pl -- Marcin Borkowski http://mbork.pl