Floating Cantilever Error in Vase Mode

[DevinAJ18]

At random layers I am getting these crossover lines in a two wall vase mode config. Appears to happen when wall goes from a convex to a concave curve. I tried changing Z seam or x, y starting point of each layer. Was unable to change anything. I’m more concerned why this is random and inconsistent. 95% of model slices fine. Is there anything I can do to rid of these wall crossovers?
Any help or suggestions greatly appreciated.

[DevinAJ18]

here is a pic and you can see the random cross
cx1.jpg