Hey carl.bostrom,
A few questions for you to hopefully get to the answer:
- Are you experiencing the issue in a single Design file, or across all of your designs (existing and newly created)?
- To confirm, is the material glass, or the appearance? Material refers to the physical properties of your parts, while appearance refers to the visually properties.
When you change the default material in your Fusion 360 preferences, it will take effect for any subsequent designs, but not for any existing Design files. If there is one design file that seems to be only creating bodies with a glass appearance, my guess is that the glass appearance has been applied to the top-level of your Browser. You can drag a new appearance to the very top level of the browser (where the design name is displayed) to change the default appearance in an existing design.
Let me know if that works, or if you have any other questions!
Taylor
Fusion 360 Evangelist
@taylor_stein
Taylor Stein
Fusion 360 Evangelist