Hey Joanne,
first of all, thank you for the purchase!
The “High Voltage” filter does not display any items because all six latest projects shown in the Projects section have the “Low Voltage” tag. Due to particularities of the Isotope framework used for Kanso’s portfolio grids, the sorting is only possible for the items that are present on the page, i.e. the “sort” commands do not append more items. You can try increasing the number of projects displayed in the Projects section (by using the “Number of portfolio projects per page” setting in the “One-Page Website” tab of the theme options panel), so that at least some “High-Voltage” projects appear in the grid, or try mixing the “Posted” dates of the various projects, if possible of course, so that the projects with different tags are fairly mixed.
Sincerely,
Andrii / Satori Studio