Posterior SFHs corresponding to the median SFR₁₀₀ values are displayed together with the true SFH (solid black line) for two representative galaxies: one low-mass (log M_★/M_⊙ = 7.32, left panels) and one high-mass (log M_★/M_⊙ = 9.67, right panels). Each row corresponds to a different SFH model used in the fitting, and each coloured line denotes a separate fitting configuration (blue: intS_Z, orange: attS_Z, red: attSNE_Z), with the SMC attenuation law applied when a dust model is included. Dashed vertical lines indicate the mass-weighted age. Under intS_Z, the constant SFH model generates the fewest young stars (< 10 Myr) among all models and yields the lowest mass-weighted age. Consequently, its strongest underestimation is SFR₁₀ and it also overestimates SFR₁₀₀, as most of the stellar mass is concentrated in intermediate-age populations. When dust and nebular components are added, all three SFH models predict larger old stellar populations, increasing the mass-weighted age and leading to an underestimation of SFR₁₀₀, particularly in high-mass galaxies.