Hi Masa,
So that you know, I've been using Fusion on the affected system (MBP) for months without issue until now. I've not made any configuration changes to the system and only noticed the problem after one of the most recent updates, hence my conclusion that it was a Fusion issue, but who knows.
As I mentioned before, this file is part of an ongoing design and I am not at liberty to share it publicly. I tried inviting you by inferring your email address, but that must not have worked. As I can not share the file where I discovered the issue, I have shared a different file that is non-critical but also shows the same behavior - URL & Graphics Diag below. At some point, Autodesk should come up with a better solution than sharing files publicly to get support - that really isn't a viable solution for many of us.
URL:
https://a360.co/2OlSM8c
Graphics Diagnostic:
[GPU Information]
GPU Device: AMD Radeon Pro 560X
GPU RAM: 4096 MB
GPU Driver API: OpenGL Core Profile
[Graphics Effects Settings]
Use high-resolution graphics: Off
Anti Aliasing: On
Ambient Occlusion: On
Object Shadow: Off
Ground Shadow: On
Ground Reflection: Off
Selection Display Style: Normal
Transparency Effect: Better Performance
[Limit effects to optimize performance]
Off
Let me know if you need me to tweak any settings within Fusion.
Art