IOS 9 issues - black screen on startup

I've just updated to IOS 9 on my test iPad Air2 and iPad3 and now find that any existing Unity IOS app just displays a black screen immediately after launch.

I downloaded the latest patch version 4.6.8.p2 and that got me to the point of being able to compile for IOS 9 again, however the black screen on startup persists.

The only odd thing I see in the Xcode console is this

No idea what that is, didn't see it before and don't know if it's the cause of the problem. Anyone else seeing this black screen issue or have any idea how to debug it or fix it. Google hasn't thrown up anyone else obviously reporting such a major issue with Unity.

 

Same here. My build was working fine just over the weekend. Today I updated to the final IOS 9 after the GM Release and now I get a black screen. No debug output. Nothing.

 

A follow up to my first reply. There is definitely an issue here.
I grabbed another iPad that was running 8.4.1 and ran my app without any issues.
So something happened with the most recent IOS 9 update. I'm pretty sure I was able to run this app on the GM release, but today I got a popup to update to IOS 9 (I guess the GM wasn't the same) and after that, my app will not run on the IOS 9 iPad, but it will run fine on the 8.4.1 iPad. All I get under IOS 9 is a black screen with no console output.

 

Maybe it is because of the AppTransport security thing on xcode 7. Try adding this on your info.plist : NSAppTransportSecurity with type Dictionary and inside this add NSAllowArbitraryLoads with type boolean and set it to YES

 

I updated my iPad Mini 2 to iOS 9 yesterday and I don't have such issues.
Sometime ago I forced the graphics api to OpenGLES2 to fix a black screen at startup for Android. I am using Unity 5.2.0p1.

 

Anyone put in a bug report yet?

 

My iPad mini 2 and mini 3 is also ok.... so it's something just effecting the larger iPads, for me anyway.

 

Forcing the opengl to OpenGLES2 or 3 does seem to do the trick, but I want to be able to use metal. Damn.
Also seems to have broken internet connection...

 

How do I force it use use OpenGLES2 or 3? I'm looking in the Player settings and don't see an option to change that?

 

a) Ignore my previous reply. I found where to disable Metal, but my app still goes to a black screen under IOS 9 but not under 8.4.1

b) I created a new blank project with a UGUI block of text and solid color image, and guess what? It works fine under IOS 9. So now I have to figure out what setting is in my real project that is causing it to not work under IOS 9. This will not be fun figuring out.

NOTE: Although my minimal test project file worked under IOS 9. I did receive 2 errors

#1 App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.

#2 Received memory warning.

Someone above in the thread mentioned the transport security issue, but also why am I getting a memory warning when the only thing in my test project is a UGUI text block and a solid color Image Panel? Weird stuff.

 

Open the iOS tab in Player Settings.
Select the 'Other Settings' section.
The third setting is 'Auto Graphics API'
Uncheck it and the 'Graphics APIs' selection option will show. By clicking the '+' and '-' icon you can add and remove APIs e.g. 'OpenGLES2'.

 

Thanks for the reply. What wound up fixing the problem for me seemed to have nothing to do with Unity. I deleted all of my xcode related data files on my Mac and on the iPad, I removed my developer account from the xcode settings and re-added it, and now everything works on IOS 9 as well as 8.4.1

 

That is good news.
I uploaded an app (using unity 5.2.0p1) for review for iOS yesterday, I hope it's stable.

 

Are you using IL2CPP or Mono? I noticed when I created my new project in 5.2 it defaulted to using IL2CPP in player settings instead of Mono

 

I am using IL2CPP

 

I tried both mono and IL2CPP with the same result.
I also tried a test project that worked correctly.
I rebuilt my xcode project from scratch each time. Not sure what other xcode data might need to be deleted.
I can send the project in as a bug report if that will help?

 

When running in mono I do see this error in Xcode

 

@JoshPeterson
I have tried my app with the mono scripting backend with unity 5.2.0p1 and it works fine on both iOS 9 (iPad) and iOS 8 (iPhone). Same result as with IL2CPP.

 

Yes, it does work correctly. I haven't seen the issues mentioned here with my app on iOS. I just suggested the others to try OpenGLES2 as I forced my app to use OpenGLES2 for both Android and iOS when I had black screen issues on Android and that fixed it.

 

I've put in a bug report now as I couldn't get any further with it and have just dropped down to ogl2 for now.
(Case 729913) -e 1)

 

Interestingly found that since 4.6.8p3 came out I can get it to run ok by deleting the app and running from Xcode to re-install it. But as soon as I try and run it again without deleting it first then I get the black screen again on startup.

 

Hello to everyone,

I am facing the same issue with this setup:

• Unity 5.2.1f1
  
• iPad Mini 2, iOS 9.0.2
• xCode 7.0.1
• IL2CPP scripting backend

The issue is fixed by switching to Mono2x, but this build cannot be published on App Store due to their new policies (ITMS-90086).

I have tried forcing only OpenGLES2 by disabling Auto Graphics API and removing Metal, but still the same issue.

Any light highly appreciated!

 

where are the instructions for disabling metal and forcing fallback to OGLES2?

 

Open the iOS tab in Player Settings.
Select the 'Other Settings' section.
The third setting is 'Auto Graphics API'
Uncheck it and the 'Graphics APIs' selection option will show. By clicking the '+' and '-' icon you can add and remove APIs e.g. 'OpenGLES2'.

 

I have tested today on iPhone 5s, iOS 8.4 and the same issue, any suggestion?

 

Thanks for the reply, no errors in console but here it is the EXC_BAD_ACCESS state:



I will follow the guide you have pointed out in the meantime!

 

It worked! Just uploaded a new version in App Store and all good.

I am not a believer but just in case we will have your picture in the office from now on (?)



So Josh... thanks!