https://forums.autodesk.com/t5/fusion-design-validate-document/fillet-problem-assembly/m-p/5656111#M295470 <P>Hi&nbsp;<SPAN class="login-bold"><A id="link_a542a50df7afd9" class="lia-link-navigation lia-page-link lia-user-name-link" href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/570572" target="_self">aqhead</A>,</SPAN></P> <P>&nbsp;</P> <P>The error shown in red icon typically means the inputs of the feature are lost somehow. The reason could be various but obviously something is wrong in your case.</P> <P>&nbsp;</P> <P>Would it be possible to share the model with us for a deeper look? You can either Export the file as .F3d format or Share Public Link with me by enabling the download permission. Both commands are available under the File menu.&nbsp;<SPAN style="line-height: 20px;">My email address: lixiong.xu@autodesk.com</SPAN></P> <P>&nbsp;</P> <P>BTW, we will introduce the new insert mechanism soon, to better support the assembly workflow like this. Just FYI-</P> <P><A href="http://forums.autodesk.com/t5/fusion-360-product-roadmap/distributed-design-in-fusion-360/ba-p/5549527" target="_blank">http://forums.autodesk.com/t5/fusion-360-product-roadmap/distributed-design-in-fusion-360/ba-p/5549527</A></P> <P>&nbsp;</P> <P>Best Regards,</P> Fri, 29 May 2015 05:42:38 GMT NicolasXu 2015-05-29T05:42:38Z