I think here may be a mistake?ofPath default value:UseShapeColor

but if "true" also has problems,
so i do like this where i draw something:

ofGetCurrentRenderer()->getPath().setUseShapeColor(true);//////here set,not change ofGLRenderer "false"
ofDrawRectRounded(R,roundRadius);
ofGetCurrentRenderer()->getPath().setUseShapeColor(false);