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.

Blurry duplicate of AppCenter icon

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.

Gear icons over application in Window Spread view


I've seen exactly the same couple of issues. I can also add that sometimes applications installed from flathub (LibreOffice) can have normal plank icons with no duplicates, but at the same time they have a gear-icon in the multitasking view.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.