Bug in number of columns (smartphone)

Hello! I want to report a bug in Final Tiles Gallery (WordPress plugin). After creating the gallery you can choose the number of columns that each device should display. But the number of columns for smartphones is bugged. When I view the gallery on a smartphone, the columns do not display according to plugin settings (I tested on 4 different devices, 2 iOS and 2 Android). When viewing the gallery on a smartphone in PORTRAIT MODE, the plugin displays the number of galleries in the PHONE LANDSCAPE field. When your smartphone is in LANDSCAPE MODE, the plugin displays the number of columns in the TABLET LANDSCAPE or TABLET PORTRAIT field (depending on the size of your smartphone screen). The PHONE PORTRAIT field seems to be ignored by the plugin, as if it were not useful. If I select all the fields with 4 columns and in the field PHONE PORTRAIT I select 2 columns, no device or view mode will display two columns, in all the screens will be displayed 4 columns.