Transaction not yet indexed

MEmyS5xaLVMJ8TEFQJ9Px8XRqC9Y8iY93srik7aooKPMnV7XbqfrAp3qd9AiPosUpW8C3ExrrS1zKZV8pkA8Xgk

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