Cannot get Zoomba working

I can’t seem to get a basic test case of attaching to an open window of Zoomba working. The output doesn’t help: WebDriverException: Message:

GameCommon\Suites\testZoomba.robot

*** Settings ***
Library     Zoomba.DesktopLibrary  run_on_failure=No Operation

*** Test Cases ***
Test Zoomba Desktop Library
    [Tags]  Zoomba
    [Setup]  Driver Setup
    Log to console  ...
    Switch Application By Name  http://localhost:4723/wd/hub  Untitled - Notepad
    [Teardown]  Driver Teardown

GameCommon\runTestZoomba.bat

CD /D "%~dp0"

robot --include Zoomba -s Suites.testZoomba .

output

==============================================================================
GameCommon
==============================================================================
GameCommon.Suites
==============================================================================
GameCommon.Suites.testZoomba
==============================================================================
Test Zoomba Desktop Library                                           ....
Test Zoomba Desktop Library                                           | FAIL |
WebDriverException: Message:
------------------------------------------------------------------------------
GameCommon.Suites.testZoomba                                          | FAIL |
1 test, 0 passed, 1 failed
==============================================================================
GameCommon.Suites                                                     | FAIL |
1 test, 0 passed, 1 failed
==============================================================================
GameCommon                                                            | FAIL |
1 test, 0 passed, 1 failed
==============================================================================

WinAppDriver installed at C:\Program Files (x86)\Windows Application Driver\WinAppDriver.exe

Looks like the example remote_url in the Desktop_Library docs is not correct?
DesktopLibraryDocumentation
I switched from http://localhost:4723/wd/hub to http://localhost:4723 and it is working. Working for both opening a new notepad and attaching to an existing one.

Maybe this will help someone in the future…