Camera and light icons are initially rendered in slightly wrong position

Open a project with an existing 3D scene in it with cameras and lights. Open the ui.qml file. Make sure your workspace has 3D edit view visible at startup - if not, adjust it so, close design studio, and reopen it and the project. Make sure your mouse is not on top of the 3D edit view at startup. After the UI has initialized, mouse over the 3D edit view -> camera and light icons adjust their position slightly.