Transaction not yet indexed

UX21NxmvZbAimyGeebLJrbKVeg5pmyvi1KZgzJE9mNY4T93Wk7NumWNrkzTYWnGutBs3cA8Ca1iNWHF9cX64C1s

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