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Error/Bug crashing Unity on Play

May 11, 2021 - 6:35am #3


I see that my problem is known, but it was supposed to be fixed in the last updates. I am using Unity 2019.4.9f1 and Vuforia 9.8 on Windows 10.

I have only one image target and one cube attached to it, I press Play, it works sometimes, I press Play second time, it crashes Unity. Sometimes it will work for a couple of times, sometimes it crashes from the first Play.

I have the webcam profile correctly setup, the privacy is allowed for Unity, I use ony the Windows security defender which it's not blocking Unity.

It is something that is blocking the development process and I cannot find a fix for it. This issue is raised by users since Unity 2018, but is still here.

I am attaching the editor log files, maybe it will help. 


Thank you.

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Error/Bug crashing Unity on Play

May 17, 2021 - 7:51am #2


because your mentioned in your post  that it is a known issue. Do you hav)e any refereces where we can check it (link to the bug report or ticket will be helpful , thanks)

-so I understand your description i

  1. issue occurs in play mode of Unity. Issue is always reproducible when you try to call play mode 
  2. camera setting done according to
  3. is the camera the default device camera or is USB .. etc?
  4.  means you use 2019 version with the latest Vuforia version 9.8.8 ?

I have different 2020 installation using the Vuforia 9.8.8 and there is no any issue reproducible - clicking many time the play button ... every thing the play mode is initialized correctly and vuforia was working fine.

 we could check:

- could you reproduce the issue using the Vuforia Core examples -> Vuforia Core examples in the Untiy Asset store , Please, open the scene "3-ImageTargets in the folder Assets>SamplesResources> Scenes    where you have a good example with 4 defined image Targets which could be tracked at the same time.

-is the issue with the lates unity version reproducible e.g. 2020.3.8.f1 - may be is a good idea to test if the problem is still there.

I have the 2019.4.24.f1 and will test the Vuforia Core examples in the Untiy Asset store with vuforia 9.8.8 to see if issue is reproducible . I  wlll let you know if issue is reproducible there.


Error/Bug crashing Unity on Play

May 17, 2021 - 8:58am #1

So tested the Vuforia Core Examples now with Vuforia 9.8.8 and unity 2019.4.24.f1 - was not able to reproduce a crash but it was  significant slower -> to enter play mode and to go back in Edit mode -it took much more time but was stable -no crash.">">

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