[Stiglr]

Not a problem.

I began noticing this after I developed a method of creating aircraft wing tips; I stack lines of the rounded shape and create surfaces linking the lines and the rest of the wing/aileron.

Even after I combined the poly lines and the wings into one object, and created surfaces around the wing tip edge and the top and bottom.... that white line continued to show (and vex). Somehow, I stumbled on the "fix" one day and was very relieved.