Transaction not yet indexed

AmJM2dYAbnc88JAaHW3KU5kxYkHm57XW2qx1RYmrSvv77SMBzX7KB4xLMpEC6vZx9A7RfdEUvhV8UnEEYxLt5b2

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