“Void statistics mismatch” refers to discrepancies between the observed population of cosmic voids—such as their size distribution, depth, shapes, and evolution—and the expectations from ΛCDM-based N-body simulations and analytic models (Sheth & van de Weygaert 2004; Nadathur & Hotchkiss 2015). In some surveys, the abundance of very large or very empty voids, or the detailed void size function and internal density profiles, appear to deviate from standard Gaussian-initial-condition, cold-dark-matter predictions unless one invokes tuned galaxy bias, feedback, or modified initial spectra, suggesting potential shortcomings in the standard structure-formation framework (Sutter et al. 2014; Hamaus et al. 2014).