hello , so i have image X , used as subcategory image , later i replaced the image X by image Y through a plugin , image replaced successfully (confirmed by opening the image link in separate browser) , but the subcategory image is still holding the image X , even though X is no longer there.
so I assume it has to do with thumbnail generating thing , so how to delete the associated thumbnail of the image X so that they get updated ? or what to do in this case ?