With custom open and close animations no matter which, the shadows always blink when opening new windows that are not maximized.

As well with system shadows or using ShadowFX so it has nothing to do with the latter.

GPU is NVIDIA GTX760, CPU 3.4 Quad, Windows 10 Pro, 64-bit.

While it's somewhat minor it's also major as it creates a huge eye sore every time a window is opened or closed, that's not maximized. Dialogue windows, etc. Sometimes it doesn't do this initially in the beginning after reboot, but it must have something to do with the cache WindowFX stores of the image prior to rendering the image as a window opens and after a while of storing this data, even for just a brief second, takes longer to produce the image thus the shadows appear first then the window or vice versa. It's random.

Or something like that, I have no idea but it's all just a guess as to why it's happening. lol But still annoying.

Hope it can be fixed!