[NTG-context] Setting colour in \processisolatedwords sometimes fails

Hi, setting the colour in \processisolatedwords doesn't always work. \defineframed [myframe] [foregroundstyle=italic, foregroundcolor=blue] \def\mycmd{\blue} \starttext %% frame works \myframe{foo bar} %% colour works \processisolatedwords{foo bar}\mycmd %% style is applied, colour is ignored \processisolatedwords{foo bar}\myframe \stoptext Why is the style applied but not the colour? Marco