Hmm I believe AppTrackingTransparency is part of iOS 14, are you using the latest AIR 33.1.1.300 which is built with iOS 14 support? I don't believe any previous versions of AIR SDK supported it, unless you were building against an external iOS SDK with -platformsdk.
Also you should use 33.1 for the namespace, 32.0 was only for the early/beta versions of AIR 33, and they've switched to namespace 33.1 for AIR 33.1 SDKs (33.0 isn't valid and will throw errors)