This haftarah is read only when the Shabbat has the SINGLE parsha of Acharei Mot. If there is a “double parsha” of Acharei Mot AND Kedoshim, we read the Haftarah for Kedoshim.
And to make things more confusing — on Shabbat of Parshat Acharei Mot in 2019 and 2022 it’s the day before Rosh Hodesh (the new month), so instead we read the Haftarah for Shabbat Machar Hodesh.
Which means that this Haftarah will be read on Shabbat Acharei Mot next on May 4, 2024.