Transaction not yet indexed

21LM53wsZFUckWTdzv6MZeu1gLSf7d69RinEkZo2Dv2Pu8LX2MFJcpiCnwcJowGmzu2LXiYvciG6PeXZGCbZzvU9

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