0x887C0001: The application has exceeded the maximum number of unique state objects per Direct3D device.
The limit is 4096 for feature levels up to 11.1.[1]
0x887C0003: The application has exceeded the maximum number of unique view objects per Direct3D device.
The limit is 2^20 for feature levels up to 11.1.[1]
0x887C0004: The application's first call per command list to Map on a deferred context did not use D3D11_MAP_WRITE_DISCARD.[1]