Hello Twinmotion Support,
I am experiencing a reproducible issue with Material Switch bubbles in the Presenter. The problem is not related to textures or materials, but to the position of the bubbles in the list.
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My workflow: I separate all elements and UVs in Blender before export. Each part (bolster piping, pillow piping, cushions, etc.) has its own slot.
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In Twinmotion, I create multiple bubbles (17 in total).
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The issue: whichever bubbles are located in positions 7–9 (middle of the list) reset to the default white color when I change their variant.
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Example: initially the bolster piping bubbles (positions 7–9) had the problem. After deleting and recreating them, they moved to positions 15–17 and worked fine. But then the large cushion bubbles (now at positions 7–9) started showing the same bug.
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This proves the bug is linked to the bubble index in the Presenter, not the materials or textures.
I have tested by:
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Reassigning textures.
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Recreating bubbles.
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Keeping the same 3D model and UVs.
The problem persists consistently at positions 7–9.
Could you confirm if there is a known limitation or bug with the number or order of Material Switch bubbles in Twinmotion Presenter? And is there a workaround to avoid this index conflict?
Thank you for your help,
Malina