Transaction not yet indexed

MUSkZttZQ19RKd4HKSxMfdHJm3uvpwDiqd77hHSAcSduW65NWkyapY9j56kW6XnpRKcsqeiEw1iiPC8i2U5z8dT

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