Influence of microlensing on light curves g and z for two different positions (solid cyan and violet dashed) as shown in left panel at 21 days after explosion for magnification map of Fig. 1 where R_Ein = 7.2 × 10⁻³ pc. The case of no microlensing is shown as black dotted line in the middle and right panels. We see that microlensing can cause distortion of light curves, shift the peaks and therefore add uncertainties to time-delay measurements between images undergoing different microlensing.