Curve in surface that trying to avoid! Rebuild Surface?

Hi there! This is kind of a simple quiestion but i´m trying to aviod a line in a surface but i do not know why its made and how to avoid it. Should i rebuild the surface so as to delete it???
Thanks!!
(dont upload de file cause it has a lot of more components that are for other things) (messy)


On close inspection, it actually looks like your profile curve is not continuous, it has a clear kink in it.
I present to you my ridiculously over the top example:

JoinCurve

If you join the curves someplace earlier, they need to be tangential.

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