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Fixed in Unity 2017.3



Found in


Issue ID




JobTempAlloc error appears in Standalone Build output log if trees are in the Scene




Priority: 3Not yet prioritized for a release


Severity: 3Workaround is possible

Reproduction Steps:
1. Import attached project.
2. Open Test scene.
3. Build and Run.
4. In Standalone Build Data files, open output.log.

Expected result: Allocator errors should not be shown.
Actual result: The following error appears:
"Internal: JobTempAlloc has allocations that are more than 4 frames old - this is not allowed and likely a leak"

Note #1: If trees are removed from terrain, the error no longer appears.
Note #2: No obvious memory leak is detected.

Reproducible with: 5.5.3f1, 5.6.0f3, 2017.1.0p2

Comments (38)

  1. 518202a1a2331309b877767f4e70cb7c?d=mm


    Nov 07, 2017 17:27

    I'm seeing the same problem today with 2017.2.0f3. Anyone found a fix yet?

  2. 104e7a27c612efac575ba55db7ae50cf?d=mm


    Oct 21, 2017 13:44

    I see it's apparently fixed in 2017.3. Will you be patching earlier versions of Unity to fix this?

    We're still getting it in 5.6.3p1.

  3. 2a2e240c722f11a980d9ab4b31f8bb31?d=mm


    Oct 19, 2017 20:14

    Still here in 2017.2.0f3.

  4. Cf0f9184e5cb55ed58b59a97cac59067?d=mm


    Sep 07, 2017 04:37

    2017.1.0f3 Still getting this warning using up to date SteamVR.

  5. B75fdd7799e6849cfa974adb400e3f6a?d=mm


    Sep 05, 2017 09:33

    Also seeing this issue in 2017.1.0f3. My scene is very simple. Using SteamVR. Frame rate is diabolical.

  6. 20dd0c6d1127a324db8bea2b1eca2467?d=mm


    Sep 03, 2017 09:25

    Still happens in 5.6.3p2.

  7. 7b05da8ca0232baf66a4a30dc0dd14b3?d=mm


    Aug 30, 2017 11:14

    FYI: 2017.1.0p5 claims to have fixed this, will take me a few days before I can confirm this.

  8. 3662e998dbcb74e318fae9a367010da2?d=mm


    Aug 30, 2017 03:10

    Still occurs in 5.6.3p1

  9. 77bf9c13d042dc017caca7db9bc93c89?d=mm


    Aug 29, 2017 22:27

    Still occurs in 2017.1.0f3 with Timeline and Audio tracks, if the audio asset is inactive when starting the editor.

  10. 2f1d46bd1d8390c9d1077265f29ae314?d=mm


    Aug 29, 2017 10:01

    i get the issue while controling my Animations ,but it doesn't link to any script,what the hell is it? how can i fix it?

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