Irrelevant errors in Analytical Application Designer

Hi,

I've deleted some canvas objects of an analytical application and said canvas object's onClick() event handlers are shown as erroneous in the designer's info panel. Are the event handlers not deleted along with their corresponing canvas objects? If so, are these error messages a bug in the designer? If the event handlers haven't been deleted, where can I find them and delete them?

As you can see in the following screenshot, despite appearing in the error log, there are no objects with the name Main_SimArea_Sale_Tab_ProductResources_Header_IconExpand :

Thanks!