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Fixed in Unity 5.2.3



Found in


Issue ID




[Canvas][RenderMode] World-space Canvas causes crash when deleting it in Paused mode




Priority: 2Necessary for shipping a final release


Severity: 1Crash, freeze, data loss, work stops

Repro steps:
1) Open the project and Scene scene
2) Run the scene and Pause
3) Make sure Canvas Render mode is set to World Space
4) Delete the Canvas object
5) Notice the crash

Comments (7)

  1. Bb2149214a0b3c12c85e6144a5019180?d=mm


    Oct 24, 2015 23:38

    This is still occurring in 5.2.1 (exact same as VAMI)

  2. C86d1219cfb58d068e503f86babb0efd?d=mm


    Oct 09, 2015 07:00

    I'm having the same issue. If the world space canvas is present in the scene and I press play in "Maximixe on play" mode, the whole editor will crash after I stop the game.

    Steps that I need to produce the bug:
    1. World space canvas present and active in the scene
    2. Press play when "Maximize on play is on"
    3. Stop the game

    This will make the editor crash, and it'll take a lot of CPU until I kill it.

  3. 14c420832445c676371c27806a5732e8?d=mm


    Oct 08, 2015 19:20

    @MAXC0C0S Yes, also occurs on windows.

    I reproted this bug, and I did not only have this with maximize on play. For me it always crashes when the canvas is visible and I delete it while in paused mode.

  4. 0257e48dcbd341c47883f933aefb3072?d=mm


    Oct 08, 2015 13:43

    Same issue for me. I only have a canvas and a plane in my scene. I switch canvas render mode to "World Space" and i press play with "Maximize on Play selected". The scene runs and as soon as i stop the scene, Unity freezes. I have to force quit it.

    I'm running Unity 5.2.0f3 under OSX Yosemite. Does the bug also occur in Windows?


  5. F4b1b15c2a142f51bc8bfeffc0468b54?d=mm


    Sep 28, 2015 18:45

    +1 - I have the same problem as JMGUILLEMETTE. Thanks for noting it only happens in Maximized play; just saved me a bit of time

  6. 6d77b357b99fe3b791235b1f7ebac068?d=mm


    Sep 23, 2015 05:35

    in re-reading this .. it actually looks like my issue and the OP have similar but different bugs.

  7. 6d77b357b99fe3b791235b1f7ebac068?d=mm


    Sep 23, 2015 05:33

    I too have just encountered this. Its very easily reproducible.

    I was just starting a new project. My scene contains nothing more that an single cockpit model and a UI overlay in world space for the displays.

    if i play the scene in "Maximize on play" everything works.. till i stop the game. Then instant crash and i have to kill the unity editor and restart it.

    if i change the UI canvas to anything other than world space the crash does not happen.

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