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Fixed in 2018.1.X

Fixed in 5.6.X, 2017.1.X, 2017.2.X, 2017.3.X



Found in


Issue ID




Editor/Player freeze and Crash with error message "d3d11: failed to create buffer" after moving canvas



Steps to reproduce:
1. Download and open the attached project
2. Enter Playmode
3. Press "Play offline --> Tutorial"
4. Continue with the panels until the 11th one starting "Europe is divided into two subregions."

Result: freeze leading to a crash

Reproduced 2017.1.2f1, 2017.2.0f3, 2017.3.0b4 on DirectX 11 and OpenGL
Not reproduced on 5.6.3p4* and on any version on DirectX 9
Regression introduced in 2017.1

*-The bug was originally submitted as a dissapearance of UI elements. That appears to not happen, but instead the freeze happens right after

Verified FIXED 5.6.5f1, 2017.2.0p4, 2017.1.2p4, 2017.3.0f3, 2018.1.0a7

Comments (2)

  1. 207b7338c5a0bcca534a30338491a73b?d=mm


    Jan 04, 2018 16:38

    Any help/movement on this one? Workarounds?

  2. B0271a4dac2b197d6685454a0f8aa57f?d=mm


    Dec 10, 2017 20:49

    This is occurring in-editor as well in 5.6.3p1. Happens somewhat randomly, but some things trigger it instantly (editing animations is a frequent offender). I am unable to upgrade to 2017.* or 2018.* due to project constraints.

    I get a loss/disappearance of UI elements. I still am able to Ctrl-S save and exit Unity, relaunching. Unfortunately the issue occurs again as soon as I reopen the project and attempt to do whatever caused the UI freeze.

    Unity support linked me to this related issue after I submitted a crash log.

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