Why do analysis symbols get the wrong size when opened from a session file?

When you open a session file either from within Researcher 2.8 or by double-clicking on it in the Windows Explorer, the analysis symbols may get the wrong size or position and the object parameter values may become wrong. This problem appears almost entirely with images having other sizes than 320*240 pixels.

To overcome this problem, open another session containing images with the particular image size before you open the session you originally intened to open. If you want to use the Windows Explorer instead, use drag-and-drop to open the two sessions after one another in the same way.