Transaction not yet indexed

21c6RC9vc35aAFxL1D2Asdnbo5KqhmsdU8aLebVzJwv36y5VFSffnEaRPtsBQUhrEThpw7wjV57SKTRNo9sPPjh7

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