Loop not complete in Vase mood

[Cocky_Saint 0]

Whenever I use Vase mode on Cura, and try to print a vase or a pot, why is the loop not completed? 

[GregValiant 1,319]

That's not much of a view but it looks like the model has a hole in it.  Those types of models aren't suitable for vase mode because the nozzle has to move from the outside wall to the inside wall.

It's possible you have coasting turned on as well.

 

In Sprialize - Cura tries to do everything in a single loop but if there is a hole in the model then it can't.  There is a definite beginning and end to each loop and you end up with seams on both the inner feature and the outer wall.  I think that's what your image shows with those red lines that are crossing the middle.  Those lines go from the outside wall, extrude across the space, and do the inside wall as if nothing happened.  Then the inner wall extrusion stops, there is a travel move back to the outer wall, and extrusion starts again.