Question with multipipe in grasshopper

[kingwind3]

Hi everyone, I got a problem with multipipe here.
I created curves, lines, hoping to build multipipe with them.(fig1)
However, the pipes are like being put together, but not connected.(fig2)
When I baked the curves and lines in rhino, then the command multipipe could build connected pipes.(fig3)
Who can explain this? Thanks very much.

multipipe1.gh (19.5 KB)

[jessesn (Jessesn Chen)]

I think you need to split all the curves input to MultiPipe at the intersection points.
multipipe101.gh (7.9 KB)

[kingwind3]

Yes exactly thanks very much