Bug occurring only with Surface package included

Visiting http://localhost:4000/dashboard/processes works.

Visiting http://localhost:4000/dashboard/home results in Argument error:

assign @inner_content not available in eex template.

To start your Phoenix server:

• Install dependencies with mix deps.get
• Create and migrate your database with mix ecto.setup
• Install Node.js dependencies with npm install inside the assets directory
• Start Phoenix endpoint with mix phx.server

Now you can visit localhost:4000 from your browser.