Transaction not yet indexed

MtK99YJE5CbG4UAJVN8aCGSAz9CWdy6CmsC6JShFh8SEmsjK5eKKV116Tv8LTNeVaK5WknagD2fGPcaMRWQWS7M

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