I have 2 separate drawings opened up. Each drawing is derived from a different model. One drawing is full scale on a B sized sheet and the other is 1:2 scale on a B sized sheet. If I start a new solidworks session and open up each drawing, they look fine. If I select "Window", then the other open drawing it still looks fine... but when I continue going back and forth, one of the drawings reverts to the same scale as the other drawing. Is this a known problem?