Transaction not yet indexed

EX6WfMRHhRbpFNC5BiYhHPMMsgRdJginSvD8dusr7TJYkryqqDEjuaQSBkkeMskbfcMbKFzDXA1SeTzSU7ZkHvH

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