Transaction not yet indexed

518EkjApbB3BWPtqgmyMCQHZHpqT2ePqfEAWCz1tvZ3hS17S3iKGnicZA3ALhYKnrTjqeuMd44JMN4LD9PtTrWL6

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