Drop shadow property bar inaccessible in X8

I cannot edit any drop shadow properties in Corel Draw X8, the property bar displays when in drop shadow mode but it is frozen, the only way I can edit

any aspects is to first  break apart the drop shadow group. My previous version X5 works perfectly. I am discovering what appear to be new bugs everyday with X8,

Am I missing something or is the problem with X8, any clues anyone?  Help is greatly appreciated.