Something in my Seattle IDE keeps adding units to my uses clause.

Something in my Seattle IDE keeps adding units to my uses clause. 
As soon as I press F9 it "fixes" (breaks) my uses clause. 
I have both GExperts and CNPack and I just installed DFMCheck
Removing GExperts, CNPack and DFMCheck does not help. 

Does anyone know what's doing this?

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