Transaction not yet indexed

HiEX21nuJC2P3sYEmEy5uGECfPA8BVbkTzSC5GJdjDWb2SXF3abSRRje4vFCzPzbFimxbLG1Tw69jsdHUJeF4Wc

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