Have you tried Hide object function in Inspector? You can have several object at the same place occurring depending on calculations you set up
Hi, yes ... but it's not that.
I do not have anything to hide or appear.
When I moving from one format to another often see a "white box", as if it remained "dirty" the interface.
Maybe your picture / Icon that you use is very big and needs to be loaded. Have a look and see if you can make the image smaller