My guess is WindowFX won't able to animate "The animation" on Start10 Panel properly. Its either or situation. If you want Start10 animation need to disable WindowFX StartPanel animation. If you want WindowFX animation use Windowblinds with no animation on StartPanel. This is my take on it. The Dev might have a different view.
So, I have forward your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience.
Stardock Community Assistant