iOS app crashes if a NetStream is referenced by a class variable when app is brought to foreground

[PippoApps]

Problem Description

Bug on iOS, tried with air 27, 31 and 32 on iOS 9 and 12, same behaviour. Consistent 100% of times.
Just create a NetConnection and a NetStream.
If class has a variable referencing the NetStream, if app is brought to background and then to foreground, it crashes immediately. If NetStream is not referenced, app doesn't crash.
Crash log infact reports a null pointer.

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000

If I comment: "_ns = ns;" App doesn't crash.

Here is a video showing behvior on both iOS 8 and 12: https://drive.google.com/file/d/14I_41rQnUA2z4pv9Ra06-84Hf9rsiN0W/view

Note that app works perfectly and for a long time if not brought to background and back to foreground again. Crashes only when brought back to foreground.

Bug on Adobe tracker: https://tracker.adobe.com/#/view/AIR-4198784

Steps to Reproduce

Basically there is only this (nothing else, no dependancies):

private var _ns:NetStream; // (this is in class definition of course)
var nc:NetConnection = new NetConnection();
nc.connect(null);
var ns:NetStream = new NetStream(nc);
/* THIS IS THE CULPRIT. COMMENT "_ns = ns" AND APP WILL NOT CRASH */
_ns = ns;

Bring app to background pushing twice the iPad home button.
Click again on reduced app to bring it back to foreground.
App crashes. All the times.
If you comment: "_ns = ns" doesn't crash!

Simple source to reproduce is here: https://drive.google.com/file/d/1s92-Wv99dechTZgqRxNMpf-C1SabxBNh/view

Known Workarounds

No workarounds. NetStream is unusable if not referenced anywhere.
In starling it gets referenced at least when creating video texture, so there is no workaround.

[PippoApps]

Just an update, I have been contacted by someone in AIR team and they are working actively on a fix. Hopefully next AIR release.

[PippoApps]

Fixed in today's update!
AIR 32.0.0.103 doesn't crash anymore.