> No, for ABI v12.8 and later it provides 5 arguments. What ABI version > are you using? Is this for PyQt5 or PyQt6? > It's 12 apparently: https://invent.kde.org/graphics/krita/-/blob/master/cmake/modules/pyproject.toml.in?ref_type=heads Changing it to 12.8 does indeed fix the problem.