LOFT

Hello,

I am trying to loft along a splin line on a single plane with multiple profile sizes along a center line. as you can see in the picture i start out from a 1/8" x 1 1/2" to 3/4 x 5/8 than i go to another profile  at 3/4 x 5/8 than back to a 1/8"x1 1/2" ... WHY is it not staying consistant shape between the two 3/4x5/8 profiles? attached is the file.

SolidworksParts And Features