Broken Desktop

With the update in Rawhide to 4.10 from 4.8 my desktop was broken. Parts of the 'starters' in Settings Manager. Most notably the "Desktop" starter. So I can not set the options there and the options that were set apparently have 'disappeared' too. It may be related but a 'mouse click' on the desktop no longer puts up a drop-down menu and my 'desktop icons' are no longer there. What package is missing or damaged? -- David