Tab hover over text box is sometimes left hanging on the screen

[kHellstre]

kHellstre last edited by leocg

As you can see on the screen, there is an artifact in red circle.
(Which by a change happens to read "artifacts" this time.)

It is the Text box which appear when hover over a tab. Sometimes they got stuck like that, as a faint box that can't be removed.

I haven't found way how to replicate it. Maybe it happens when I do something fast before the box is fully fated out.

Restarting Opera fixes that.