https://forums.autodesk.com/t5/flow-studio-forum/how-to-fix-attributeerror-mesh-object-has-no-attribute-use-auto/m-p/13878926#M9 <P>The “AttributeError: 'Mesh' object has no attribute 'use_auto_smooth’” error shows up when trying to validate a custom character with the Flow Studio Blender Add-on in Blender versions 4.1 and newer.</P> <P><!-- notionvc: 85d6889e-4093-4227-9834-25ba4c4f5d58 --></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-left" image-alt="Attribute Error.png" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1584655i71972DB6BED03B4C/image-size/large?v=v2&amp;px=999" role="button" title="Attribute Error.png" alt="Attribute Error.png" /></span></P> <P>&nbsp;</P> Thu, 13 Nov 2025 19:02:30 GMT Marko_ADSK 2025-11-13T19:02:30Z https://forums.autodesk.com/t5/flow-studio-forum/how-to-fix-attributeerror-mesh-object-has-no-attribute-use-auto/m-p/13878926#M9 <P>The “AttributeError: 'Mesh' object has no attribute 'use_auto_smooth’” error shows up when trying to validate a custom character with the Flow Studio Blender Add-on in Blender versions 4.1 and newer.</P> <P><!-- notionvc: 85d6889e-4093-4227-9834-25ba4c4f5d58 --></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-left" image-alt="Attribute Error.png" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1584655i71972DB6BED03B4C/image-size/large?v=v2&amp;px=999" role="button" title="Attribute Error.png" alt="Attribute Error.png" /></span></P> <P>&nbsp;</P> Thu, 13 Nov 2025 19:02:30 GMT https://forums.autodesk.com/t5/flow-studio-forum/how-to-fix-attributeerror-mesh-object-has-no-attribute-use-auto/m-p/13878926#M9 Marko_ADSK 2025-11-13T19:02:30Z https://forums.autodesk.com/t5/flow-studio-forum/how-to-fix-attributeerror-mesh-object-has-no-attribute-use-auto/m-p/13878936#M10 <P>The officially <A href="https://help.wonderdynamics.com/character-creation-getting-started/character-requirements/" target="_blank" rel="noopener">supported Blender version</A> is 3.6.2. Prepare your character in the supported version to avoid data loss or compatibility issues. Characters created in newer versions, such as 4.1 and newer, may encounter these challenges.</P> Mon, 03 Nov 2025 19:28:44 GMT https://forums.autodesk.com/t5/flow-studio-forum/how-to-fix-attributeerror-mesh-object-has-no-attribute-use-auto/m-p/13878936#M10 Marko_ADSK 2025-11-03T19:28:44Z