while working on page 4 of a project, my page content reduced to almost a point located at (0,0) on the stage. This event happened while I was trying to reduce a text box. The situation had happened to me several times and I was able to recover the zoom level after clicking several times the Undo command. This time I have not been able to recover the normal zoom level.
Any idea why this is happening and how to recover my 100% zoom level of the page?