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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. EsTOEban

    Jan 04, 2018 16:38

    Any help/movement on this one? Workarounds?

  2. dtupper

    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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