Transaction not yet indexed

KBut2sZxgtMRfcRbMhS7E2yFeV6EEt5uQknNCZ7yvXa8SuoBJZC4u9bZfPQC18TYsd16SRMCUESNkLj5udDH6ev

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