66.0.3350.3

Steps to repro:
# With ChromeVox running, open a new tab page
# Press alt+f to open the Chrome menu
# Arrow down through the menu, pay attention to the index reproted by ChromeVox. I.E. '1 of 14', '2 of 14' etc
# Notice that the screen increase, decrease, and fullscreen options do not have indexes, but they take up a single menu index
I.E. '6 of 14' increase, decrease, fullscreen, '8 of 14'
# Notice that certain areas of the menu start at a different index: cut, copy, paste for example
# Open the 'More Tools' submenu
# Arrow down through this menu and notice the item indexes reported by ChromeVox
Notice that index 2 is missing

Expected: Index announcements should be in sequential order, or if these sections of the menu are visually separated they should be announced by ChromeVox, or index values should not be announced at all.

Actual: Index numbers are missing or restart seemingly at random

User replied and added these comments:

yes, I can give exact instructions. I had sticky mode enabled and opened the file manager by hitting the searcher in the shelf.I then disabed sticky mode and opened the file manager. I then proceeded to re-enable sticky mode hit the tab key until i got to the list of folders on my device. for me it was 5. I then used the down arrow to navigate to add new services level 2. I pressed space to activate this option and I see a popup that expands visually but I can't get chromevox to interact with it. I notice this same behavior with other combo boxes such as on the web. I can see the box and it expands but I can't interact with the options inside of the box in order to make my selection.

activate this option and I see a popup that expands visually but I can't get chromevox to interact with it. I notice this same behavior with other combo boxes such as on the web. I can see the box and it expands but I can't interact with the options inside of the box in order to make my selection.
"

This seems like a separate unrelated issue to the original reproduction. Combo boxes on the web are meant to be interacted with using the arrow keys (not with ChromeVox commands). This is because the page itself is in charge of what the arrow keys do. We can provide a ChromeVox hint to describe this interaction.