Unity 5.2.2p1 Screen goes black intermittently on iOS8

Target Platforms Mobile
1

Hi,
Our QA team have encountered this issue:

"While performing any action within the application, the device’s screen randomly starts closing and opening on devices with iOS 8.0.

The issue had a higher repro rate when trying to/after logging on a Facebook account, but generally it occurs randomly during gameplay. The issue also occurred about three times without being logged into a Facebook account.
Additionally, the app is slightly functional during this occurrence, but with a very low frame rate, and it is usually fixed by double tapping the Home button and re-selecting the application.

Please note the fact that in a single occurrence on iPad Mini 3, the tablet itself froze completely and lost any functionality (including the physical buttons) after reproducing this issue.

Repro Rate 8/10

Repro Steps:

  1. Launch the application
  2. Connect to a Facebook account (QA were using Safari not Facebook app)
  3. Perform any action such as completing a level, browsing through the Level Select screen, zooming in and out, opening various menus, logging in and out of a Facebook account
  4. Observe that the device’s screen randomly starts flashing

Notes:

  • This issue occurs only on devices with iOS 8.0
  • This issue was reproduced on iPhone 6 Plus with iOS 8.0.2, iPad Mini 3 with iOS 8.0
  • This issue was also tested using an iPhone 6 Plus with iOS v9.0 and an iPad 3 GSM with iOS 9.0 and did not reproduce."

Unity, we can send you video of this occurring upon request via PM.

2

We have found a work around where we haved force Unity to use OpenGL ES 2
This probably means that Unity Metal Rendering has some issues with iOS8

3

Hi!

Could you file a bug for this and attach a repro case with it?

Thank you
Marton

4

Sorry, don’t have time make a repro project for this. We’re a bit tight on time for our next update.