Transaction not yet indexed

66EXC52YNhwKDPxbLJrd4QLLw4Howzzb1Fr2MJ49bMk8YyhfWqq76guWGcKi9s5QVUou384RxPRLQoBztFHCQZdM

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