Parts of blue (top), and red-arm (bottom), HRS/SALT spectra obtained close to the outburst maximum on February 15, 2019 (magenta), when the jets were first noticed on July 1, 2020 (blue), and during quiescence on February 5, 2018 (red). The laboratory wavelengths for identified emission lines are shown with green dashed lines labelled with the corresponding element. The position of the most frequent lines from singly ionised iron (Fe II) are shown with cyan dashed lines without labels for clarity.