1. Creating a complex panel with various children then animate its size (causing it to re-layout). (im using mouse to resize the container)
2. You can notice the layout is not always up-to-date. Precisely speaking, you can feel the layout lagged behind the rendering, some components are at previous frame's locations, while some others are at new locations. This is especially severe when running a low-end integrated graphics card where frame-rates can be low.