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Unity 5.2.0f2: Editor sometimes freezes when leaving play mode

Discussion in '5.2 Beta' started by Peter77, Aug 27, 2015.

  1. Peter77

    Peter77

    QA Jesus

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    The editor sometimes freezes when leaving play mode (Windows 7). The only option to continue is to kill the Unity.exe process and restart the editor.

    Anyone else having this problem?

    PS: The editor freezes, does not crash as reported here.
     
  2. Alex-Lian

    Alex-Lian

    Guest

    Please grab a crash dump via Task Manager and submit a bug and report the # here.
     
  3. Peter77

    Peter77

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    I'm not able to reproduce the freeze anymore. Now it also crashes every time I leave play mode, bug reported as:

    (Case 723283) 5.2: Editor crash when leaving play mode

    I guess it's a duplicate of this one, but who knows.
     
  4. Peter77

    Peter77

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    Today the editor is freezing again when leaving playmode. Submitted the following bug-report, dump attached as well.

    (Case 723639) 5.2: Editor sometimes freezes when leaving playmode
     
  5. movra

    movra

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  6. Alex-Lian

    Alex-Lian

    Guest

    A quick look at the bug seems to be something related to logging regarding recalculating the hierarchy view. Having folk take a look.
     
  7. shawn

    shawn

    Unity Technologies

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    Hi, we're having a difficult time reproducing this bug. So looking for any kind of information that would help give us a clue.

    One question I have, does this still happen in an empty project?
     
  8. XxPleYxX

    XxPleYxX

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    I had the same problem and I solved it by disabling "Preferences / General / Enable Alpha Numeric Sorting". I think something is wrong with "Alphabetical Sort".

    This is the loop that cause the freeze.

     
  9. Peter77

    Peter77

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    No, I haven't noticed the issue in an empty project, but I didn't spent hours trying to reproduce it there.

    I don't do anything special to trigger the bug. I just press Play, play the game for a few seconds or minutes and press Stop.

    I can repro the bug with my project rather easily, but also not always. It requires a few tries:
    * Start Unity
    * Load Scene in editor
    * Press Play
    * Play 3 minutes
    * Press Stop
    => Editor freezing or crashing.

    The game is loading and creating game objects while it's running. I might had have "Alphabetical Sort" activated, but I'm not certain because I switch between Alphabetical and Transform-Sort back and forth as needed. I often use the "Mute Audio" option in the editor. I usually have VS 2012 open the entire time.
     
  10. shawn

    shawn

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    So it seems like this is a project-specific kind of bug (enabling Alpha Numeric Sorting isn't helping us reproduce it). We'll need a project that reproduces this behavior to investigate further. If anyone has one that they are willing to upload to a bug, please do so and provide a case number here.
     
  11. XxPleYxX

    XxPleYxX

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    Case number 725519
     
    Last edited: Sep 7, 2015
  12. shawn

    shawn

    Unity Technologies

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    Thanks! We've managed to reproduce it now. We're looking into it.
     
  13. shawn

    shawn

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    So we've identified the root issue. The use of DontDestroyOnLoad() along with AlphaNumeric Sorting is causing the crash. (The repro project submitted has InControl in it with DontDestroyOnLoad being used). We're still looking into the fix.
     
  14. WI_Lee

    WI_Lee

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    Hi Shawn,

    Wondering if this could be related to a similar crash bug I reported? Case number 720757.

    Thanks.
     
  15. shawn

    shawn

    Unity Technologies

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    Unlikely, but we're still digging into that one too.
     
  16. liang.zhao

    liang.zhao

    Unity Technologies

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    725519 is fixed. It's a stupid mistake. Forgot to clean the sorted list, when unloading the scene.
     
  17. gekidoslair

    gekidoslair

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    100% repro here. Submitted bug report. Will try disabling alpha sort to see if that fixes it.
     
  18. gekidoslair

    gekidoslair

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    disabling alpha sort seems to have fixed the issue.
     
  19. nocanwin

    nocanwin

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    disabling alphabetic sorting fixed the issue for me too.
     
  20. then00b

    then00b

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    Not sure the status of this at this point but this was also happening to me and after reading the posts here, was remedied by disabling alphanumeric sorting.
     
  21. liang.zhao

    liang.zhao

    Unity Technologies

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    The fix will be in 5.2.0 patch 1.
     
  22. ArachnidAnimal

    ArachnidAnimal

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  23. shawn

    shawn

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    This is also fixed with the same fix in 5.2.0 patch 1.
     
  24. Tomi-Tukiainen

    Tomi-Tukiainen

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    I'm having Unity Editor 5.2.0f3 crash or freeze completely white every time after exiting play mode. Alphanumeric sorting disabled. Development environment is Mac / OS-X.

    Case# 726748
     
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