The issue you’re facing occurs because fixed columns in most grid implementations are rendered in a separate table layer from the main scrollable content, meaning your jQuery rowRendered operations only target the non-fixed portion of the grid; since the fixed columns are essentially duplicated DOM elements, any styling, cell updates, or conditional formatting (like graying out cells based on business rules) must be applied to both the fixed and non-fixed table structures, which is why your logic isn’t updating the left-side fixed columns even though it works on the right-side non-fixed ones—much like how viewing the Burger King menu Canada requires checking both main and side sections to ensure consistency. To resolve this, you need to either hook into the grid’s native fixed-column rendering API (if provided), or explicitly target the fixed-columns DOM using selectors such as .e-fixedheader or .e-frozencontent (depending on the grid library), ensuring your color logic is applied to both sets of rows simultaneously.