Thank you for sharing the information! It seems exactly the problem with macOS and M1 Macs. (The issue does not appear on Intel based Macs, so only on M1 Macs.) It has been reported about a few weeks ago from another user:
M1 Macかつv4の組み合わせでノイズが発生します。
It seems to be caused by the GPU driver in macOS 11.6 having a regression. The alternatives are:
- Downgrade to macOS 11.2.2
- Wait for Apple to release a new macOS version that fixes the issue. However, Apple does not respond to our issue reports.
I'm very sorry, but we have no way to fix this issue on our end.