Copy design button missing in Figma Make preview

The Copy design button has disappeared from the top of the preview area in Figma Make. I have been using this feature regularly without any issues, but today it suddenly stopped appearing. In the preview area, I only see three options at the top right: Preview options, Comments, and Edit. The Copy design button is completely missing.

I have already tried the following troubleshooting steps:

• Created a new Figma Make file — the button is still missing
• Opened the file in an incognito window — the button is still missing
• Added &disablepreview to the URL and re-enabled the preview — the button is still missing