Transaction not yet indexed

Kc2599h5MahKLWsdd8NJz2xkdXJFdjzxtjKx6wAVmy9K2eLsKnRWmZ7u8QUDLYkgyUy5f1rMS6EKcVkWVg3TooP

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