Transaction not yet indexed

MkknF6VVWzb35wa8Aa41aPKBTzhJwUYtmT9CB59pzFgaEM8tFsjkWaJgixccFqPXoCTJ4bxyZYpsE3bXXHqhj78

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