Help with cookie cutter- extra layer gets added to the bottom of the print

[lisanguyendang]

Hi- I've made and printed a bunch of cookie cutters using Fusion 360.  This is the first time I've had an issue when an extra layer somehow gets printed on the bottom (cookie cutter on left).   I want it to look like the cutter on the right.  I've tried printing my old cookie cutters that I designed last year, and they print fine.  It's only the cookie cutters that I've been designing this weekend.  Any help would be appreciated! It's driving me crazy.  

[wmhazzard]

If your saved model does not have the solid back then the problem would have to lie with your slicer. Preview your Gcode and see what it looks like.