[NTG-context] no star in itemize with luatex

Hello, running the file %%% \starttext \startitemize[3] \item Hello world! \stopitemize \stoptext %%% in luatex, I did expect to get a star and then Hello world! However, I got something like \perp instead of the star. It works with pdftex. I also tried with some other fonts with same failing result. I run the latest minimal context and also tried this at the contextgarden with the same result. Any solutions around? Best wishes, Mikael