Transaction not yet indexed

5Kk21cGjrErqqPyCLGqLreTknsUE6a2UU2FJqqkxSowyFopR1B5vPFaifcGioxHYc4qRdwdKv3L2Xn1D4TXMeWUF

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