[NTG-context] metafun externalfigure macro with xetex

Hi all, if i use the metafun macro externalfigure with xetex, there is a printed number (first externafigure prints a 1, the second a 2 right after the 1 and so on) in the lower left corner of the picture; the picture itself is shifted to the upper right, out of the bounding box. I have this

[NTG-context] metafun externalfigure macro with xetex

Hi all, if i use the metafun macro externalfigure with xetex, there is a printed number (first externafigure prints a 1, the second a 2 right after the 1 and so on) in the lower left corner of the picture; the picture itself is shifted to the upper right out of the bounding box. I have this