Transaction not yet indexed

HMpLAddCNcFwuKHLN7CAnPZigiqy7f8ukwDKAPkaUWMCAAAdJkSF7K85z4e8a81Z1hQfFkrBP8m16cuvNHmPA91

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