Bayesian posteriors of the primary lens mass (M₁) and the distances to the lens (D_L) and source (D_S) of the lensing event OGLE-2023-BLG-0836. Within each panel the event contributions from the disk and bulge lenses are illustrated by blue and red curves, and the black curve represents the combined distribution of the two lens populations. The solid vertical line marks the median value, and the dotted lines indicate the 1σ range of the posterior distribution.