[NTG-context] Something is wrong with backgrounds

Hi all, if I compile the following example with the actual beta, the circle is set in foreground … even if the background is not set. \startuseMPgraphic{test} fill fullcircle scaled 5cm withcolor red; \stopuseMPgraphic \defineoverlay[test]{\useMPgraphic{test}} % \setupbackgrounds[page][background=test] \starttext test \stoptext Can someone confirm this or have I overseen something? Greetings, Andreas