AIR 20.0.0.233 Crash when debugging on iOS 7

Hi,

Having an issue with the latest AIR release that won't allow our application to run on iOS 7 in debug.

The application crashes at the point where the connecting to the debugger dialog normally appears and we get errors in the crash log relating to UIActionSheet?

OS Version:          iOS 7.1.1 (11D201)

Report Version:      104

Exception Type:  EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Triggered by Thread:  0

Last Exception Backtrace:

0  CoreFoundation                0x2ec9efce __exceptionPreprocess + 126

1  libobjc.A.dylib              0x39517cca objc_exception_throw + 34

2  UIKit                        0x316a0da6 -[UIActionSheet _assertIfValidForView:] + 186

3  UIKit                        0x3170539c -[UIActionSheet showInView:] + 160

This works fine with the previous version 20.0.0.204.

Any ideas?