UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.84 Safari/537.36
Platform: 10718.71.2 (Official Build) beta-channel link

Steps to reproduce the problem:
1. Open https://material.angularjs.org/latest/demo/autocomplete
2. Enable Chromevox with ctrl-alt-z
3. Select the "What is your favorite US state?" combobox
4. Note that it announces "Status" at the end
5. Press the down key three times to change the dropdown selection to "Arizona"
6. Note that instead of announcing the options as "Alabama Alaska Arizona" it announces "Status Status Status"

What is the expected behavior?
Chromevox should announce the content of the role="status" region which is "Alabama", then "Alaska", and finally "Arizona".

This is originally added to the DOM
<div class="md-visually-hidden" role="status" aria-atomic="true" aria-live="assertive">Alabama</div>
then changed to this:
<div class="md-visually-hidden" role="status" aria-atomic="true" aria-live="assertive">Alaska</div>
and changed to this:
<div class="md-visually-hidden" role="status" aria-atomic="true" aria-live="assertive">Arizona</div>

This works well on VoiceOver for macOS.

What went wrong?
Chromevox announces "Status Status Status" as it appears to be reading the role and not the contents of the Status Live Region.

Did this work before? N/A 

Chrome version: 68.0.3440.87  Channel: beta
OS Version: 68.0.3440.87
Flash Version: 

Details on Live Region Roles can be found here: https://www.w3.org/TR/wai-aria-1.1/#live_region_roles
The status role can be found here: https://www.w3.org/TR/wai-aria-1.1/#status
And details on Live Region Attributes can be found here: https://www.w3.org/TR/wai-aria-1.1/#attrs_liveregions