hardcoremore So as you can see AIR is not optimized for any platform really. But it is very close to be and that is why I am asking from Harman fix this problems.
Ask not what your runtime can do for you – ask what you can do for your runtime
it seems in your 200K+ line of code that you do a lot and ask a lot from AIR
and when you encounter issues and other things not working
you automatically consider them "bug in the runtime"
have you tried the other way around?
ask a little less from AIR, reduce what you do at the same time, reduce the textures size, etc.
if your code is less demanding it should work better right?