I'm participating in a Connected Project as a guest and encountering an issue with Figma MCP.

Around September, I was able to use Figma MCP without any problems, but recently it has started returning the following error:

Error: This resource couldn't be accessed. IMPORTANT: Before continuing, you must tell the user to make sure their paid Figma seat includes Dev Mode access, they have the right permissions for this file, and the provided link is valid.

I have a Full Seat on my own team and can edit files in the guest project, so I don't believe there are any permission issues. (I can access files from my own team via the MCP server.)

The host is on an Org Plan, and I'm a guest on a Pro Plan.

I'm using the desktop MCP server.

Does anyone have any information about this?