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Bug [SEVERE BUG] Unity 2021.3 running out of windows USER objects

Discussion in 'Editor & General Support' started by eatsports2, Sep 10, 2022.

  1. eatsports2


    Jan 20, 2020
    On Windows 11 in Unity 2021.3.9, there is a bug that causes unity to run out of Windows User objects.
    Once that happens the console in Unity prints this message:
    The current process has used all of its system allowance of handles for Window Manager objects

    After a while windows breaks and starts to spawn a lot of windows on screen, and Unity freezes:
    This a severe bug that happens only on windows 11 and pretty much makes it impossible to use Unity

    Steps to reproduce:
    - Start unity 2019.3.9f on windows 11
    - Just use it for a few minutes, import packages, enter play mode and it will break

  2. MikeCee0705


    Apr 29, 2022
    Hi, I'm watching this as I've got something happening almost identical to this. However all I manage to get done is create three squares in a new project. Bam 10,000 user handles. :confused:
    eatsports2 likes this.
  3. AnthonyBall


    Aug 19, 2014
    Also happens in 2022.2b7 and b8... :(

    Sometimes it even green screens if you leave it on that message without closing pretty quickly.

    I don't know if this is a Unity bug or a Windows 11 bug (that also updated recently). It only seems to happen when running Unity though.
    eatsports2 likes this.
  4. parttimepoet


    Jul 6, 2022
    I'm having the same experience with 2021.3.9f1. I have been experiencing the handles issue for over a week now and since yesterday this specific issue with all my Windows processes opening up in the background. Stumped!
    eatsports2 likes this.
  5. Tautvydas-Zilys


    Unity Technologies

    Jul 25, 2013
    Hi, are you on insider version of Windows? If so, this is a known issue and we have reports that it has been fixed in Windows build 25201. It would be great if you could confirm whether it fixes it for you too.