I spot a potential error [in Oathbringer]:
While she spoke of Jezrien and Kelek, she said their names strangely: Yaysi and Kellai.
This line comes from Dalinar's perspective - don't the Alethi use the name Jezrezeh and not Jezrien?
The name Jezrien isn't unknown—Sizgil knew it in Way of Kings, even though they don't say Jezrien in the Makabaki lands either. But I'll ask Brandon about this line.
EDIT: We have determined that Dalinar should have said Jezerezeh in this context. So we'll fix this in the ebook and audiobook, and in future reprints.