Transaction not yet indexed

5M66voWurAMsA3DLAo83ExsSPaMpHYqXwKmWQJs1MF1Xam343Ki2rjabDGUbccuQHrYQQfuBzZFGEigkTzZzTK3e

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