Transaction not yet indexed

m66ubTcKeyzkRXpokJmSnHSX2wNh6uZTGTzaZJRLZGEGDTdybDUWdGoqQ8bcLpYvH6mJfWdu8LnmMQL7dBiJFxc

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