Transaction not yet indexed

MdPSpkKUrn1vFb8cFdFcPu8sUa7ABc3GwsD2kvcwuCnFzt7zE7RcqBKa7xUP7qGDq9sJBcnwuZjH9rB7uTwAtDM

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