Transaction not yet indexed

66sp91DdXFEcKL52Ddf9LdscWo9nz2fD6ASwafbcyusNJcgTPJCB2BxgfYkYHeAr7G2dr3qPB9iRddyyBNbR4Uu2

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