REM light curves of the blazar in the g, r, i, and H filters. The photometric points were obtained after subtraction of the nearby star photometric template. The magnitudes have been shifted for display purposes. The horizontal lines indicate the average magnitude values. The inset in the top of the figure shows the variation ΔMag = Mag-median(mag) for all filters around the time of the observation. In both plots, a vertical black line shows the date of our 2024 spectroscopic observation, which happened near a local flux minimum.