Transaction not yet indexed

MffKmFNPeSf1W4RAEvjeednDiUPJaKnYWUi2gG2UtxzXo7HiYJN3iwcSyMMLhAR83tZ9Dy36iXkeNrmMN7WUVJs

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