D1231: Unknown DXGI Format Support
A call to IsDxgiFormatSupported was made with DXGI_FORMAT_UNKNOWN. This API returns false, though DXGI_FORMAT_UNKNOWN may be valid as an input to some APIs.
A call to IsDxgiFormatSupported was made with DXGI_FORMAT_UNKNOWN.
Determine whether DXGI_FORMAT_UNKNOWN is a valid buffer precision for a given API by reading the documentation for that API rather than trying to determine this programmatically.