Cannot Split the Mesh with curve

[Md_Riaz_Rahman]

Hello everyone,
Please help to identify the problem, why curve is not splitting the mesh model.
Thank you.

TF IC.3dm (1.1 MB)

[laurent_delrieu]

Split with the clean curve not the polyline

It also work if you rebuild the polyline with say 60 points.

[Md_Riaz_Rahman]

Thank you for your Solution.