Transaction not yet indexed

iSMz3yzbFRN73TeEkAnjLKV4LJSYktXBm7d9haSD6EkceCdSvmxTNgFCnxj1ZDmDCS7eq6EYCLPW4ggqCASUvVM

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