> Does it appear if you place no items in the list widget? => No.
> Does the dot move when you click on items? ==> If I click on other items, it moves to the item I just clicked. But even though I click on the same item again and again, it doesn't move.
> Does it appear in other applications or in a fixed position on the screen? ==> I tried with listWidget with another application, and had the same issue.

Here is the source code I am testing with.
https://www.dropbox.com/sh/g3yedv1ii...iRVzpiB7a?dl=0

Thanks.