Mohar's pseudo-triangulation cross-cap drawing conjecture

Let $g$ be a positive integer, and let $N_g$ be the non-orientable surface of genus $g$. A loopless pseudo-triangulation of $N_g$ is a cellularly embedded loopless multigraph in which every face has degree three. A perfect cross-cap drawing has $g$ cross-caps and every edge intersects each cross-cap at most once. Mohar's pseudo-triangulation conjecture. Every loopless pseudo-triangulation of $N_g$ admits a perfect cross-cap drawing. The paper explicitly states that this stronger conjecture is disproved by Schaefer and Štefankovič, so it is not an open problem.