Transaction not yet indexed

MFfWx21FEnJ9crHmXQd2tKvT4bTv37QL3EghrBHF8utqWUJZjC2LK2ihF7YgMPh2XtCFgMBUmsubw6VGpNW5BNJ

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