GeoPAK Earthwork errors "XS-NOPROP"

I have about 50 cross sections.  on each cross section I have drawn a line where the bottom of the proposed features are.  Each cross section has the same type of line, level, weight, color, etc. On 23 of the 50, I am getting the error, "XS-NOPROP"  no proposed xs elements at this station.  when in fact every cross section has the same proposed line.  i have tried exploding the line and tried changing the vertical search criteria with no luck. 

Thanks,

Brandon