The problem is that your code is reading config files that it should not be reading. In Configuration > Shared, we have 2 files:
Common.config
Common_hold.config
We allow the administrator to decide which one to use through renaming.
However, CE is duplicating both the Font selection and Size selection (and probably more) when there are these 2 files in the folder. If I remove Common_hold.config, there is no duplication.
Please check your code for this problem.