Window switching broken with Chrome (?) [move between windows of an application]

Hi

I think I’ve found a bug but would like to confirm it first. I’m running Ubuntu Mate 17.04 (1.18.0).

My keyboard shortcuts for window management are as follows:

Move between windows, using a popup window ALT+TAB
Move between windows of an application, using a popup window ALT+§

Lets say I have these windows open:
Chrome
Chrome
Chrome
Thunderbird
Thunderbird
Terminal
Terminal
Terminal

Current window:
Chrome

If I ALT+TAB, it goes through all windows listed above. Seems normal, this is what I expect.
If I ALT+§, it doesn’t do anything. It shows me a popup with only one window (being the current Chrome window) and no other Chrome windows. So ALT+§ doesn’t switch between Chrome windows.

Lets change my current window, it’s now Thunderbird.
If I ALT+TAB, it works as above. Expected. If I ALT+§, it switches between the Thunderbird windows. It recognizes correctly that there are two of them and switches between them.

ALT+TAB and ALT+§ work the same for terminal.

Is this a bug or did I miss something? Thanks a million!

I would like to up this one.

Alt-tabbing doesn’t work with Chrome with 17.10 beta 1 either.