There are three buttons on top left of the space/time window. The first one is used to spread the previous time selection to the whole width of the window,
creating a kind of zoom every time the button is pressed after a smaller time frame is selected.
When repeating this select/spread process several times, Paje fails to position correctly the view frame, showing a time frame that is different from the one previously selected (before the zoom). This can be easily replicated with the current git version of Paje.