Linux ( RHEL 6.8 ) version of Photoscan-pro 1.3.1 and 1.3.2 exhibit this behavior. This bug is not present in 1.2.4.
Not tested on Windows or Mac.
If I open a project, select the photos tab from the photos pane, and then double click a photo to open it in a separate tab behind the model tab, all works fine - I can zoom in on the model, uses scroll bars. When I select that photo tab and then try to zoom in on the photo, move the window scroll bars on any pane, double click a point to edit the name, etc nothing happens. When I then click the model tab, all of the functions work again. If I tried to zoom in or out of the photo with the photo tab open, go to the model tab, then back to the photo tab, the photo is zoomed in or out (and most likely not where I wanted it). This also happens with scroll bar movements.