10.3 Upgrade and saw two widget with same name with same GUID

we have 3 tier for development, Dev for recent dev work , Staging and Production .

At dev : we recently migrated site to 10.3 

At staging : just imported the production data and trying to apply the 10.3 UI upgrade from dev 

In staging we noticed that we have two widget with same and and same GUID and while importing a widget changes are not reflecting in the widget where they suppose to be. 

Thanks,

Ravinder