Adding a notch to a ring causes strange graphical errors

In my first project with Babylon I tried to create a ring with a notch in the middle. But this notch causes graphical errors and I don’t know what the reason for this can be.

The playground repo is here.

Hi @ewice

Your shapePath was the cause of this,
went from:
left corner of outer ring
-> right corner of notch (thus passing over notch on it’s way)
-> bottom of notch
-> left corner of notch
-> right corner of outer ring (thus passing over notch on it’s way)

Thank you!