Transaction not yet indexed

21sTg5D6Uuim4MLex5KXKuSjfHiEWpDsscoYHyFLJcfBi9o4hVXQzx9nMgA5SU3EudpVjdktUeeXHZvhpkNGW1F9

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