As of about a day ago my visuals(Matrix and various charts) do not go into full focus mode on the mobile app. When I select focus mode there is a bit of space on the top about 15 - 20px(report is cut off at the bottom). When I sort the data by the various measures the visual moves further down on the screen until it disappears.
The only way I can make it show correctly in focus mode is if I "Copy or Select All" then double tap the visual and it will focus properly.
This is on all Android Devices. not sure about apple yet.