Occasionally, when opening an app, a duplicate (blurrier) icon will appear in the Plank dock, and the app's normal icon already kept in the dock will not display an indicator.
When this happens, said app's window will show a gear icon in multi-tasking view, as shown below, as well as window spread view and the alt-tab switcher as well.
OP: [virtuosoj](https://elementaryos.stackexchange.com/users/24265/virtuosoj)
Asked Nov 3 at 4:40
Original post: https://elementaryos.stackexchange.com/questions/25907/duplicate-icons-in-dock-and-gear-icons-in-multitasking-window-spread-views
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What Happened
Occasionally, when opening an app, a duplicate (blurrier) icon will appear in the Plank dock, and the app's normal icon already kept in the dock will not display an indicator.