Transaction not yet indexed

21mUMYNHtceK8sWbAqBx1z8xaMU8i2eSGGYYxDw3v4qYzv6rgUeCvMZkfSQnKmAxJhZJ79npKei5ULFHqqURN3vW

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