To be honest I have no idea why it doesn’t work.
Can you show the whole method, i.e. this and the surrounding code? I don’t think the problem is the framework, to be honest. If your model isn’t a part of some dynamic, kinematic or static object, but just an arbitrary model loaded with the code you’ve shown, then the framework shouldn’t affect it in any way (in fact, it shouldn’t even if it was used by physical objects).