miron
May 8, 2026, 3:40pm
1
Version: 1.7.27.0
Frequency: Consistently
Severity: Blocker
Context: Blender 3.6.15 addon 6.4.9
Bug description: Create a cube, create any shape animation and export it. You’ll get an empty object in SIM.
A topic where this error was partially touched upon.
Can you please provice a working sample of shape keys?
attached are 2 test (one in blender 3.6 and another in blender 4.2), with current 5.4.6 plugin
Both seems to create a perfectly shaped gltf (infact throwing them in any gltf viewer I can see the object and the animation playing)
Unfortunately, in game, as soon as shape keys are added to the model , the model won’t show
(empty bounding box wireframe)
[Screenshot 2025-12-13 001253]
shapeKeyTest.zip (109.4 KB)
42.zip (113.0 KB)
…
Hey @miron ,
I’ve reproduce the problem on my side.
The bug as been logged on our side.
Thanks for reporting.
Best regards,
Romain
Hello @miron ,
The fix is available in the current beta SU6.
Could you test it to see if it works on your side?
Hey Romain,
Is the fix on the engine so SU6 is needed?
or on the Blender plugin and we can expect it to work in SU5 too?
Thanks!
Hello @mamuDesign ,
So the fix is on the engine.
2 Likes
miron
July 17, 2026, 4:43pm
6
Hello @PowerGecko , I imported the Mamu GLTF file into engine version 1.8.8.0 and the error is still there. I also did a separate export through the blender addon version 5.4.4 and the error is still there. But maybe something was done wrong, let me know if the export from the 3D engine has change
miron
July 17, 2026, 4:53pm
7
Also, this cube causes MSFS2024 to crash after I add it to the level. There are no errors on the build.
test.zip (107.3 KB)