Reported Version: v0.1.5 (latest) | Mods: none | Can replicate without mods? Yes
OS: Windows 11 Home | CPU: AMD Ryzen 5 3600X 6-Core Processor | GPU: Radeon RX 5600 XT | RAM: 16GB
This also happened to me while passing through the cloud layer, and the black pixels disappeared immediately after reaching 12000 meters. Once they have appeared, they stay where they are on the screen and don't move, even with moving the camera around.