#### Steps to reproduce: - Open Inkscape - File->Open - Select arbitrary JPEG file - This is required. The bug does not happen when starting with an empty file. - Use Bezier tool to draw a path - Add "Mirror symmetry" path effect - Select "Vertical Page Center" mode - Save file as SVG - Close file - Open file #### What happened? Path is no longer mirrored along page center. The mirror axis is somewhere else. #### What should have happened? Path should still be mirrored along page center. #### Inkscape Version and Operating System: - Inkscape Version: 0.92.2 (macOS DMG download) or 0.92.4 (MacPorts) - Operating System: macOS - Operating System version: 10.14.5 (Mojave)