Transaction not yet indexed

21Mpmw9PMRdZ3jgwGy5uzDzz72yfHK9ZdS2KPh2szhL2kHsbXfPcSkMTrtrV8jCcmYX5pQ5t4WmP7gTipkJs3SPz

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