Transaction not yet indexed

MCmFX5YHJc8ZsbajAtzCXZKGkdFW4xUFxXFj8ftASmeJ9ou5Yxh7DfdZRP4gFE8dfKpocLKCCCiL1Zgui1Gyx71

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