Transaction not yet indexed

518agFxTPbQeyUXbcFWnGC2XDeauqe98aYUtF8Zaga2kmtFMvjXZfL5GutSZNTFcAeZ5mW8kAqDMgu3K9NnrPVw2

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