Depending on which browser you're using (I'm using Chrome) you might have encountered a blank screen today when trying to get into xGen or xDesign. I think it may be related to the updates that happened over the weekend. In Chrome I ran a hard refresh (not just the normal refresh). You can access it by opening the Developer Tools (F12) and then right clicking on the refresh button. You should see an option to "Empty Cache and Hard Reload". After that the apps were back to normal.