Transaction not yet indexed

UDMp668ecbf7Tc67UQEPtXJQyQH9jj3ibHmEDZcmfU7yo8rnNM7TsiEArR7cc6QUHvNL7RLiyZr2QE6ffuZdJmC

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