Transaction not yet indexed

AMbQxiW8m7Z9gC2jhECXZwKoZGNcpD7B4bTMyo7c4hVaeR9hABwafkzMgRf4xiknhbpqDxSubpzbrSSPPnmcE78

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