Can't change indicator: Uncaught TypeError when changing indicator in the proximity viewer

Console Error:

Uncaught TypeError: Cannot read property 'UpdateTable' of undefined
    at ProxApp.OnMapClick_Handler (application.js:201)
    at Map.dispatchEvent (evented.js:41)
    at Map.Emit (evented.js:59)
    at Map.OnLayerClick_Handler (map.js:205)
    at r.St.fire (mapbox-gl.js:29)
    at HTMLDivElement.<anonymous> (mapbox-gl.js:33)

How to reproduce error:

1. Checkout Master branch
2. Open up proximity viewer
3. Click the map stack menu button and select a different indicator
4. The indicator isn't changed and the above error is printed to the console.

Note:
Live version of the atlas doesn't have this issue, so I suspect the code isn't at parity (likely the github repo is newer).

Upon load, the proximity viewer displays the following error which appears to be related to the error in the issue;

application.js:115 Uncaught (in promise) TypeError: Cannot read property 'Node' of undefined
    at ProxApp.AddMenu (application.js:115)
    at new ProxApp (application.js:19)
    at main.js:40

Both error appears to be related to the commenting out of the instantiation of a tooltip object (line 13 in commit 6de303fba0e90c0ad541df39a5d27aea0972f32b) in the mapbox-tools/controls/mapsList.js module.

Note: When comparing the live version to the development version, the tooltip is not commented out. And when the development version of the instantiation of the tooltip on line 13 is uncommented out, the issue is resolved.

A temporary fix for this issue has been committed to ensure that the app doesn't prevent switching between datasets. This is accomplished by simply commenting out the "Dom.AddClasses(list.tooltip.Node("root"), "prx");" in the AddMenu() method inside the application.js module.