Trailed observed and reconstructed spectra of the H_α and He I emission lines (left two panels) and the standard and inside-out projection Doppler maps (right two panels) of Czev404 Her obtained in April 2019 (top, middle panels) and July 2019 (bottom panels). The circle (solid line) in the Doppler maps marks the tidal limitation radius of the accretion disk. The central spot in the inside-out projection is an artefact.