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I am running Ubuntu 12.04 64bit on my machine and something changed recently, and I am not able to bring up the "expo mode" for all windows when clicking on the launcher icon.

When clicking twice on a launcher icon for an application that has multiple windows open, unity should show all the open windows right? Or did that change? Do we need to configure this behavior somewhere?

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If you are only using 1 workspace then this broke in recent unity upgrade - – doug May 15 '12 at 15:04
No, I have not changed the number of workspaces, checked now and its still the default 4. – asp Jun 21 '12 at 13:17

I have the same problem since there was a Unity update a few days ago. This is due to Unity 5.12, as 5.10 worked perfectly. This is obviously a pretty serious bug, which can only be solved downgrading to version 5.10 (which I did).

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