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My app, Number Wizard, has been in the App Store for over two years. For each new version of iOS, I've never had any issues. Now, with iOS 8, my app crashes. The 'welcome screen' appears and then it crashes. Any help is greatly appreciated. I haven't had to touch my code since I initially put it in the App Store. I am using an iPad mini.

on openStack
set the defaultFolder to specialFolderPath("Documents")
locatePlayButtons
code for hiding various fields and buttons
put the Machine into whatDevice
code for initializing variables
put 1 into gWidthRatio
put 1 into gHeightRatio
if whatDevice <> "unknown" then
iphoneUseDeviceResolution true, true
end if
put readFromFile ("Prefs") into thePrefs
code to move items into fields

put readFromFile ("Scores") into theScores
code to move items into fields

if item 1 of thePrefs = "0" then (this shouldn't be in my case)
show button "welcome"
else
hide button "welcome"
setPreferences
createProblem
end if

end openStack

I am not familiar with your app, but does it use push notifications?

No. No push notifications or in app purchases. Just a very simple app.

I have the same issue, just random crashes though sometimes on splash screen sometimes during usage of app.
Here is my crash log : (Using LC Community 6.6.2 - xCode 6.0.2 Standalone Built for iOS 7.0 and above)

Date/Time: 2014-09-22 07:34:38.134 +0200
Launch Time: 2014-09-22 07:34:36.098 +0200
OS Version: iOS 8.0 (12A365)
Report Version: 105

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00000000b66639af
Triggered by Thread: 6

(The thread that crashed)

Thread 6 Crashed:
0 libobjc.A.dylib 0x3511cf57 objc_msgSend + 23
1 libobjc.A.dylib 0x3512b1a5 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 401
2 CoreFoundation 0x2756f3a5 _CFAutoreleasePoolPop + 13
3 Foundation 0x282a15f5 -[NSAutoreleasePool release] + 117
4 Resonance 0x002313bb 0xc1000 + 1508283
5 Resonance 0x001cf78b 0xc1000 + 1107851
6 Resonance 0x001cf65b 0xc1000 + 1107547
7 libsystem_pthread.dylib 0x357d3e91 _pthread_body + 137
8 libsystem_pthread.dylib 0x357d3e03 _pthread_start + 115
9 libsystem_pthread.dylib 0x357d1b8c thread_start + 4

Hi Kevvy

Does your app use mobilepick? If so then see this thread http://forums.livecode.com/viewtopic.php?f=49&t=21607

Just an FYI, there is a patch that is being tested now for release this week.