Chabad.org — English translation + Rashi
Torah Temimah: certain elements of the first Pesach do not attach to the second; the verse’s limited list is deliberate.
English: “They shall eat it with matzos and bitter herbs” — the verse specifies what applies to the second.
Selective transfer — not every feature of the first night migrates to the second month.
Pesach Sheni is a focused remedy for the korban and its immediate eating laws, not a full replay of the festival.