The nef Cartier b-divisor determination conjecture

Let $X$ be a reduced integral noetherian excellent $QQ$-scheme and let $D\in\operatorname{\mathbf{CDiv}}_{\mathbb{Q}}X$ be nef. A determination of $D$ is a modification $f:Y\to X$ on which the b-divisor $D$ is represented by a Cartier divisor $D(Y)$; its center is the locus where $D$ is not Cartier on $X$.

Nef Cartier b-divisor determination conjecture. If $D\in\operatorname{\mathbf{CDiv}}_{\mathbb{Q}}X$ is nef, then there exists a determination of $D$ with center equal to the Cartier locus of $f$.

This conjecture seeks a geometric determination with the smallest possible center for nef Cartier b-divisors. The supplied text does not state whether it has been resolved.