I'm really not sure. It must be remembered that Anim8or is a one-man creation and there is only so much one person can do. The best we can do is push Anim8or to the limits (and let's be honest, very few of us have actually managed that) and hold on to the hope that Steve has been secretly building V1.0 and once complete he will unleash it upon us and stun everybody with its amazingness!
Seriously, Anim8or as it is now has some excellent qualities, not least the overall simplicity and extendability, but it should not be compared with $$$ packages or open-source monstrosities like Blender and it will most likely always have some little bugs like this one. Steve has done an incredible job building Anim8or for no reward other than the undying admiration and respect of we who are lucky enough to have found this simple, intuitive, free package to bring our creative imaginations to life.
As it stands Anim8or should be considered an introductory package on which to learn the craft, before extending those skills to something like 3DS Max or Maya. It is also a handy tool in the 3D animator's toolbox, it's modeller is missing some cool features like Booleans but it more than makes up for this in ease of use, clarity of interface etc. and I still use it for 99% of my modelling.