I've always noticed that when I install the latest Air SDK in Flash Develop I can select it as the default SDK but in the platform settings on the Air Mobile field [project properties > platform > Output] I can't select the latest version. For examples if I installed AIR24, in that "Air Mobile" drop-down list it will only show up to 23. If I run the app on 23 or 22 I will get an "error while loading initial content". If I run it on 21 it is fine. It's always been like this. With Air18 it will only run if 16 (or 15) and lower is selected.
Does this happen to others and does anyone know why this is?