Search Issue Tracker

Fixed in 2020.2.X

Fixed in 2019.4.X, 2020.1.X



Found in





Issue ID




[macOS] Inconsistent crash in objc_msgSend/objc_retain when previewing Animations with Animator window open



How to reproduce:
1. Open tester-attached project(
2. Enter Play Mode
3. In the Animator window, switch to the 'Parameters' tab
4. Toggle the only parameter off and on; wait for the animation in the Game View to finish each time
5. If the crash does not occur shortly, restart the Editor and repeat step 1-4

Expected result: the Editor does not crash
Actual result: the Editor eventually crashes

Reproducible with: 2019.3.13f1, 2020.1.0b9, 2020.2.0a11
Not reproducible with: 2017.4.40f1, 2018.4.23f1

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a14

  2. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.0b13

  3. Resolution Note (fix version 2019.4):

    Fixed in 2019.4.1f1

Comments (5)

  1. enhawk

    Aug 29, 2020 13:21

    I'm having the same issue on Unity 2019.4.7f1

    when editing animations then hitting play, unity will lock up for a while then spring back into life.

    Often Unity will just crash when hitting play.

    at least once I got a KP and Unity crashed Catalina.

  2. Kelevra

    Jun 09, 2020 16:36

    Hello! I had the same issue but it was connected with metal renderer interaction. After disabling metal in the editor crash is gone.


    Jun 03, 2020 09:25

    same issue here. Both on macbook pro and iMac.
    It also request developer tools update.

    Run this command to stop the popup at least:
    sudo /usr/sbin/DevToolsSecurity --enable

  4. ewanuno

    May 21, 2020 08:21

    as a workaround, dock the animator and animation editors in the the same tabbed window, so you can only see one at a time. for me this has stopped the crashes completely.

  5. korsanbilgisayar

    May 12, 2020 20:58

    im facing with the same issue, crashes on animation window.

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.