Transaction not yet indexed

AmXZ4fAAeyBV9NHPhTZbXHQPaaJsEici5RGMBEt698oUfGWji9XQah2QmGCNdiQiLLuGyWT5DgC6fvFDY3BG2gK

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