In the android app its possible to zoom in on a ticket, this is necessary when there is a photo attached to it to read the text or zoom in on the photo.
When u zoom in, its hard to swipe to left right or something to see the rest of the photo or text. You then have to zoom out and zoom in on what u want to read or see.
In this movie you can see what i mean.
In the Iphone app this bug has been fixed recently.