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Export GLTF/GLB - 2-nd time in 1 session won't work
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IIntel Core i5 6600K, @3.50 GHz; (RAM) - 32GB
System Type: Win 10 PRO 64 bit
Windows 10 (64Bit), Nvidia GTX 2 x 1050 Ti

Used Blender Version:
Date: 2018-12-05, 02:05
Hash: 1fa527bfa3a
Branch: blender2.8

Export GLTF/GLB - 2-nd time in 1 session won't work

  1. I create a simple cube, I apply a texture to a Principal BSDF shader,
  2. From where I'm exporting the file as GLB file - and it works
  3. I'm trying to repeat the operation by exporting it again /.GLB, and won't work. A error message appearing.

I'm planning to present Blender 2.80 at my company in a higher level management, as tool which we need to consider for a real integration to our pipeline of production /automotive cockpit electronic industry/.
Currently, I've been using Blender since 2011/12, for commercial need for all my daily tasks and needs in the industries I've been working on. Even now in this company I personally use Blender any 3d related task.

For us now the new GLTF/GLB integration is really something we want to try in real, and if you could provide this kind of support, I will be able to present next week some examples in real-time to the team.

Best Regards,

Event Timeline

Ivaylo Gogov (ivaydesign) triaged this task as High priority.
Ivaylo Gogov (ivaydesign) lowered the priority of this task from High to Normal.Thu, Dec 6, 12:48 AM
LazyDodo (LazyDodo) raised the priority of this task from Normal to Needs Triage.Thu, Dec 6, 2:12 AM

please do not assign priority your self, since it actually makes it less likely for the people triaging the bug tracker to look at your report.

@Ivaylo Gogov (ivaydesign) In the past few days there have been major improvements to the export settings, but unfortunately a serious bug has crept in with the "Save Settings" feature. I believe this will be fixed in the next few days.

As a workaround, on your broken Blender project, go to the "Scene" properties tab, expand the "Custom Properties" section, and delete a custom property named glTF2ExportSettings. Then you should be able to export again, but, don't save the export settings until after this is fixed.

Upstream issue tracker for this is here: