Transaction not yet indexed

HMM8RMWWVYjUfg2VsAwMFwvCy3RkqSkFfnCoeHhJXqtwob1bQFBrGPdsbKFUBNqnPLfU2s5vjQdRrRvAESzEfS8

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