In AbstractRenderSession you have this construct: .beginBitmapFill(bitmap, m, repeat, smooth && (v0x*(d2 - b2) - v1x*d2 + v2x*b2 > 400));
while it is very cool hack, I think this value is negative in 50% of cases and so it's its abs() must be > 400 (why this value, btw? 100 worked for me, for example)
