Time delay inference dependence on interpolation step of ICCF for whole light curve. Color code: blue is the validation star and red is the AGN. Points without error bars correspond to the flat ICCF, where the CCCD failed. The CCCD was run with the following ICCF parameters (NSIM: 5000, SIGMODE: 0.4, THRES: 0.6, NBIN: 100). The Monte Carlo sampling slightly depends on the random seed, but interpolation steps less than one day always show smaller time lags with smaller uncertainties for the AGN compared to the validation star.