Nine objects whose late-time detections required a more rigorous investigation. Each object is shown in absolute and apparent magnitude (left and right axes respectively) and rest frame days since first detection and mjd (top and bottom axes respectively). We show the binned ZTF data with the late-time detections as well as pre-ZTF detections from other surveys (Pan-STARRS, Gaia, ASASSN, PTF) where available. For SN 2017ige a heavily extinct (E(B − V)_host = 1.2 mag) light curve of SN 2020jfo is shown with dashed lines matching the late-time ZTF r-band detections. The objects are marked with the explanation for their late-time detections.