Transaction not yet indexed

Am8PKkuXdpeXF3A3up2cDQ24mokcJ2YXWF9DgrdoGQzWP93vMHkhLqjWSVED6Pt7V9p9Kv632yfkku2M14aMJGg

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