Transaction not yet indexed

AmU7bRBcSVZsmNCcHYWDxoFWPBoXdDeLgEQYmta97mDaGAYnnq8gzxXHbz8L4yVB7Rb2dCvSougbdocTMmdCNf4

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