[NTG-context] formula in TABLE is not continuous numbered

Hi, please have a look at this minimal example below: you'll find three formulas (1), (4), (5) What happen to (2) and (3)? Steffen ....... \starttext \placeformula \startformula a+b=c \stopformula \bTABLE[frame=on,align=right,width=fit,style={\switchtobodyfont[9pt]}] \bTR \bTD[width=35mm] \placeformula \startformula c-a=b \stopformula \eTD \eTR \eTABLE \placeformula \startformula c-b=a \stopformula \stoptext