Codimension-three conjecture for microlocal perverse sheaves

Let $\La$ be a Lagrangian, and let $\Per_\La(\bZ)$ denote the stack of microlocal perverse sheaves on $\La$ with integral coefficients. Codimension-three conjecture. The codimension-three conjecture holds for the stack $\Per_\La(\bZ)$. The paper introduces this as a concluding open problem after discussing the corresponding comparison of regular holonomic module categories and the reduction to a pure codimension-one locus. No resolution is supplied in the given text.