Missing corporate action data

It appears some stocks and mutual funds do not consistently have data, especially dividends, that is found on other sites. For instance, PACIX has a dividend on 3/18/22 visible in Yahoo!Finance. But the API returns no data for https://paper-api.alpaca.markets/v2/corporate_actions/announcements?ca_types=Dividend&since=2022-03-01&until=2022-03-31&symbol=PACIX