Since the recent update 11.0.11, I can no longer delete a multimedia item from the right-hand sidebar with the back delete key. I can still use the minus sign in the bottom bar of the multimedia window or I can open the Media Window and then delete it with the delete key. I was used to highlighting the item in the sidebar and deleting it with the delete key, so keep forgetting that it doesn't work any longer. Has this been done intentionally for some reason or is it a bug?