https://forums.autodesk.com/t5/fusion-support-forum/a-message-about-a-problem-while-running-the-program/m-p/8939636#M140964 <P>This is because you have an add-in that is not updated to support the new UI preview. You'll need to go to the appstore and update Slicer to the latest version.&nbsp;</P> Tue, 30 Jul 2019 21:57:40 GMT ryan.bales 2019-07-30T21:57:40Z https://forums.autodesk.com/t5/fusion-support-forum/a-message-about-a-problem-while-running-the-program/m-p/8939267#M140963 <P><span class="lia-inline-image-display-wrapper lia-image-align-center" image-alt="Untitled.jpg" style="width: 405px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/662521iDA11DD67525C1255/image-size/large?v=v2&amp;px=999" role="button" title="Untitled.jpg" alt="Untitled.jpg" /></span></P><P>&nbsp;</P> Tue, 30 Jul 2019 18:33:12 GMT https://forums.autodesk.com/t5/fusion-support-forum/a-message-about-a-problem-while-running-the-program/m-p/8939267#M140963 Anonymous 2019-07-30T18:33:12Z https://forums.autodesk.com/t5/fusion-support-forum/a-message-about-a-problem-while-running-the-program/m-p/8939636#M140964 <P>This is because you have an add-in that is not updated to support the new UI preview. You'll need to go to the appstore and update Slicer to the latest version.&nbsp;</P> Tue, 30 Jul 2019 21:57:40 GMT https://forums.autodesk.com/t5/fusion-support-forum/a-message-about-a-problem-while-running-the-program/m-p/8939636#M140964 ryan.bales 2019-07-30T21:57:40Z