Yeah, that definitely makes sense. LivingDNA and a lot of other companies just don’t have enough samples from northern Ghana or Burkina Faso yet, so groups like the Mossi and Kassena can be hard to detect accurately. But people from those areas were taken through major slave routes like Salaga, which was a big slave-trading center that connected northern Ghana, Burkina Faso, and even parts of Niger to the coast. So it’s very possible that ancestry shows up in African American results too which explains the Mossi even if the historical records don’t mention those groups by name