Sometimes it may be useful to inspect the number of derived assets that are associated with an asset in the Media Library, and possibly delete specific derived versions if desired.
More information on derived assets here:
If you want to check the number of derived assets that are associated with an asset, navigate to the Media Library, and locate your asset. After locating your asset, select the three dots in the upper-right corner and select "Advanced Editing"
This will open a new page, with a button "View derived images" in the top right. Click this button, and then the derived asset versions will appear on the left-hand side. Derived assets can be inspected and deleted here if desired. FYI any delete request will include the cache invalidation parameter automatically.