The filter system not working for some columns could be due to a few reasons:
1. Front-end performance issues: You might be experiencing temporary display problems. Try clearing your cache and refreshing your screen.
2. Incorrect filter setup: Ensure you've set up the filters correctly:
• Click the "Filter" button above the table
• Select the column you want to filter
• Choose the appropriate comparison operator
• Enter the value you want to filter by
If these steps don't resolve the issue, it might be a more complex problem. In that case, you may want to request human assistance for further troubleshooting.