If the displayed columns don’t match the number specified in the settings, it means the container the gallery’s displayed in isn’t large enough.
You can fix this problem in one of two methods:
- You can increase the width of the container your gallery’s placed in. Your container’s size is determined by your website’s theme and template.
- You can reduce the width of your thumbnails to have them fit inside their container. Open the layout settings window by clicking the gallery’s shortcode. From the settings under the Thumbnails layout, find “Thumbnails dimensions.” The left box dictates your thumbnail’s width, reduce the width value, then click the “Update” button.