This seems to happen in the room layout when putting molding on cabinets ( crown and base )
In the room lay out ( with cabinets in it ) go to the molding tab and pick a molding (crown/ base your choice)
Now lets say the left end has a -22.5 degree miter and the other end has a 45 degree miter now create the molding
make a long story shot if you high lite the molding to edit you will see the left end has the 45 degree miter and the right end has the -22.5. You have to fix this in the edit molding mode
Gary
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