Transaction not yet indexed

MXpMR6L6CnU1DXSCSirkVSD7ZVr2p5r2KvTPV3ELccZrWEc36rv3s8EsTkXs2hK6r2ZScgavfpPYJdBmM3gLExJ

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