Modifying the popular topic widget icons?

[jdonily]

I'm trying to figure out how to change the default image for a topic in the Popular Topics widget on the main home screen.  I have gone into the Topic Taxonomy menu and the child topics are displaying the updated icon, however the main parent topics are not - see attached image. 

Does anyone know how to update those icons?

[indhujapalv]

I've created a new taxonomy and not able to see the topic_default_icon for the topics in the newly created taxonomy. I guess may be because its somewhere been set to be used only for the OOB Employee Taxonomy. Is there a way to use same default icon for multiple taxonomies ?

[Dan O Connor]

This is likely a caching issue. When you change the banner image or icon whilst the topic page will likely update immediately, the widget will not. 

To confirm your change either impersonate another user, or log out and back in.