Transaction not yet indexed

21Mcp7DoeqfxX4oiU7unXdf3srUL3xTKvEHdA4g5pmx8RnoEiUwF4mP8pkThCC9CyjWd3UVRdd2YH5Hj7CuZse8n

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.