Issues running System Tests due to missing font?

I have written two system tests for my current application and I have now hit a road block.

test "visiting the timesheet index without signing in" do
    visit timesheets_path

    assert_text "You need to sign in or sign up before continuing."
  end

  test "visiting the timesheet index (signing in first)" do
    visit new_user_session_path

    fill_in "Email address", with: "paul@contractor.com"
    fill_in "Password", with: "password"

    click_on "Log in"

        assert_text "Signed in successfully."
  end

The second test is failing due to not being able to load a font shown below:

Error:
ContractorTimesheetsTest#test_visiting_the_timesheet_index_(signing_in_first):
ActionController::RoutingError: No route matches [GET] "/fonts/fa-solid-900.woff2"

If I spin up my rails server locally I have no errors for missing resources and my font files are all loaded correctly.

For further reference I am using the defaults for my application system test case

class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
  driven_by :selenium, using: :chrome, screen_size: [1400, 1400]
end

Does anyone have any suggestions?