Search Issue Tracker

Fixed in 5.4.2



Found in


Issue ID




[iOS] App freezes in applicationDidBecomeActive() on iOS 10



Steps to reproduce:
1) Open the latest attached project.
2) Build and run on an iOS 10 device (using Xcode 8 beta).
3) When the button starts spinning, press the lock button.
4) Unlock the phone and return to the app.

The app freezes in applicationDidBecomeActive(). If it doesn't, repeat steps 3-4.
Then the freeze occurs, locking and unlocking the phone again makes the app resume normally.

Reproduced on:
5.5.0a5, 5.4.0f3, 5.3.6f1

iPhone SE (iOS 10 - 14A5309d) - reproduced
iPhone SE (iOS 10 - 14A5335b) - reproduced
iPad Mini 2 (iOS 10 - 14A5322e) - not reproduced

Comments (13)

  1. shubhamswaraj2021

    Aug 18, 2020 09:28

    good one <a href="">lyricsauto</a>

  2. scieon

    Apr 26, 2017 10:32

    Where is the option to download the attached project?.

  3. Starya

    Mar 04, 2017 08:46

    I can confirm this is fixed in 5.3.7f1.

  4. xuyilai

    Feb 14, 2017 04:31

    fixed in 5.3.6p5, but still have the same problem in 5.4.3p4, 5.5.0p4

  5. rezonate

    Feb 02, 2017 01:11

    This is also happening to me. iOS10, Unity 5.5.1. When I resume the app after closing, or locking the screen, the app is frozen. I am also using Application.targetFrameRate = 60 if it helps.

  6. Superxwolf

    Jan 30, 2017 01:23

    Please open this bug up for voting as it is not fixed as of Unity 5.5.1, this happens when locking the phone and also when receiving a phone call.

  7. tametick

    Jan 27, 2017 08:36

    still happens to use as well on 5.5.0p4

  8. nitroy2k

    Jan 21, 2017 14:38

    Same problem unity 5.5.0p4
    I had Application.targetFrameRate = 60 and it crashed few times,

    Now I removed script for target frame and it works ... So this error is still active on Unity 5.5..0p4

  9. andyvene

    Jan 17, 2017 11:20

    It is not fixed. Unity 5.5.0 f3 and Xcode 8.2.1

    This kind of crash may happen if you have set a Application.targetFrameRate = 60 for iOS.
    Try to remove it and then it won't crash when coming back to app after lock button.
    Doesn't affect the home button.

  10. PapaCashew

    Jan 16, 2017 17:22

    Same problem. Tried Unity version 5.4.2f1 and 5.5.0p4.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.