how robust BRepOffsetAPI_MakethickSolid??

I've been trying to make a thicksolid using the above function and been very unsuccessful. It crashes except for simple shapes such as solids and cylinders. I know the surfaces has to be at least C1 continuous but other than that didn't see any restrictions on documentation. I've attached a solid that I've tried to make a thicksolid by removing the two end caps. Any ideas? Is there anybody who has used this function successfully on solids other than simple boxes and cylinders? Thanks in advance.