  In this work, we study the lensing effect of the QCD critical point on
hydrodynamic trajectories, and its consequences on the net-proton kurtosis
$\kappa_4$. Including critical behavior by means of the BEST Collaboration
equation of state (EoS), we first consider a scenario in equilibrium, then
compare with hydrodynamic 0+1D simulations with Bjorken expansion, including
both shear and bulk viscous terms. We find that, both in and
out-of-equilibrium, the size and shape of the critical region directly affect
if the signal will survive through the dynamical evolution.
