Transaction not yet indexed

28Cv8SepenBqjnqYEFMTfKAc4dfDpuxUgC84Pk8vvPPRqQFgAAJvxezRY14nGjqjLjLAxfdW2i4bnNadYWBVAMPR

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