Load attached brep file. Use BRepOffsetAPI_ThruSections to create a loft surface by selecting two circle curves. It will crash in
BRepFill_Generator.cxx. Crash point is:
gp_Circ k1 = (Handle(Geom_Circle)::DownCast(C1))->Circ();
Here C1 is a TrimmedCurve and its basic curve is a circle. So this conversion will failed.
I have compared OCC6.5.3 and OCC6.5.4. No updates in this file.
Thanks in advance.