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modeling - Catmull-Clark Subdivision Surface is causing artifacts on a circular mesh - Blender Stack Exchange
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Subdivision behaviour is different than in any other software causing compatibility issues - User Feedback - Developer Forum
Blender 2.8 Catmull clark subdivision on a plane is rounding the corners - Modeling - Blender Artists Community
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Subdivision behaviour is different than in any other software causing compatibility issues - User Feedback - Developer Forum
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