Specific Additional AC TYPEs not filtered from the Misc Category on the Output Sheets

The "*Ioun Stone, Dusty Rose Prism" from 3.5e DMG adds +1 Insight bonus to AC.
However on the "csheet_fantasy_simple_grey_light" PDF output sheet, it displays '1' in both the 'Insight' and 'Misc' boxes of the AC breakdown. (it does only add 1 to the actual AC, so the overall result is correct.