The Jedi Tresina Lobi became a semi-major character during the later years of the Yuuzhan Vong story arc. During the first meeting of the new Jedi Council, she was described as having the standard Chevin appearance:
To Saba's right was Sien Sovv, the Supreme Commander, and between Sovv and Luke bulked the wrinkled gray frame of the Chev Jedi Knight Tresina Lobi, whose long snout was partly unrolled on the surface of the table.
A golden-haired Chev woman, Lobi resembled a pale-skinned human with obsidian eyes, a heavy brow, and a sloping forehead.
Her Wookieepedia article describes her as a Chev, but obviously in her earlier appearances she was meant to be a Chevin like Ephant Mon in Episode VI.
Which description of Tresina Lobi is accurate, and why the change?
The preferred answer would include a reference to the discrepancy from one of the authors or anyone else involved with the books, but if needed I'll accept anything that proves a reason for the change.