Transaction not yet indexed

ECHKEk1rBo3u8aRtYnxqWaut2yfpwpe8CG3nbCaMTQGEESw6KQJDJLzDmL5tqyqevs8Qvw7vVBxR2pHkBKZqiC2

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