ORIPA possible error

[mganans]

I am using Oripa to draw some CPs I need for a tessellation book I´m preparing. While trying to do a CP for a trapezoid twist, I Oripa does the fold, but the twist direction is inverted.

I have tried reversing all lines (flip), and the result is the same.
[img]https://flic.kr/p/2h15LSG[img]