Removing Orphaned Craft Hotspots

I used the Craft plugin to setup many hotspots on static design elements. Recently I setup a symbol to replace the static design elements. I deleted the static elements across several artboards, replacing them with the new symbol. I expected the Craft hotspots to automatically delete when I removed the static design elements. Counterintuitively, the hotspots remained and were orphaned. These orphaned hotspots appear purple, rather than blue. I cannot select them in order to remove them. Copying and pasting the artboards to a new canvas, uninstalling and reinstalling the plugin also fails to remove these orphaned hotspots. Please help!