Transaction not yet indexed

668AeC8fK552Z33aPFnXQUZ1CNeUBHvjfVu5QbB3t2CMJRMRQwFwMFCVR1eis1wddGY2TdZVA5i8q4kr9f4UbFHJ

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