autoUpdateRender property
Default flag to make the engine update() the Stage and all his children (onEnterFrame), needed by GTween to run the tweens. GMovieClip and GSimpleParticleSystem also makes use of this. Same applies to basic "mouse out" feature detection (when mouse doesn't move but objects changed position).
It overrides useTicker when true.
And, unless you don't need external control over the rendering & update
pipelines for the scene, or if you use a static scene,
you should leave it as true.
Implementation
late bool autoUpdateRender;