Transaction not yet indexed

CU16RN9WHbhBvfD9FGAz1tcCesNUqAWaK2j4itLsS5k6sHNeXC1rHHhyygkY2J2fDE9Mm4SW6ipcoCReAgykdxq

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