==============================================
   trim_curves.curves->knots.floats[0] = 1.00
   trim_curves.curves->knots.floats[1] = 2.00
   trim_curves.curves->knots.floats[2] = 3.00
   trim_curves.curves->knots.floats[3] = 1.00
   trim_curves.curves->knots.floats[4] = 5.00
PEXError: Bad PEX OC
OC code: 98
Request code: 28
==============================================