Hey, I’ve had the same problem in some games (including this one). This setting fixed it for me, but use it at your own risk—I’m not a computer expert.
Note: This setting also enables Auto HDR in some games (unfortunately not in this one).
Go to:
NVIDIA Control Panel → Manage 3D settings → Program Settings → vintagestory.exe → Vulkan/OpenGL rendering mode → Set to “Prefer Layered on DXGI Swapchain.”