Transaction not yet indexed

Am9gWGhwKGmtTLVbAsUgCHCA2kwxPdDFPqD2xCXsUfw8TBG91eHuDoB8co61MeKw2dYiMQTR23APqGSnyWCZU54

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