Optical, UV, and X-ray light curves for the entire period of our monitoring. From top to bottom, we show (a) 0.2–5.0 keV flux from Swift-XRT, XMM-Newton-EPIC, and eROSITA, (b) UVM2- and UVW1-band flux densities from Swift-UVOT and XMM-Newton-OM, and (c) line fluxes for the broad Hβ and Hα emission components, integrated over the whole broad profile (Sect. 4.4.1). (d) ZTF g- and r-band, (e) ATLAS c- and o-band, (f) WISE W1 and W2 bands. In panels (a), (b), (d), and (e), there are some data points for which the error bars are smaller than the marker for the data point.