Transaction not yet indexed

52hkzzsKbAW9ycp3Yb663GvGfKgE6i7ZZKPwpAnandGqksbuTAcbDMcyRs5GNmdgJDayKswFLfytdC15eZZPbWHk

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