Found the following bug in the base game when brousing through the ingestibles:
Ingestible - Editor ID: FortifySkillConjuration3 (Name: Conjurer's Philter) - Has the Wrong ENIT - Effect Data - Value 828 (it should be 207 instead)
If you compare to other potions in the progression line you can easilty see the error:
FortifySkillConjuration1: ENIT - Effect Data - Value 61
FortifySkillConjuration2: ENIT - Effect Data - Value 132
FortifySkillConjuration3: ENIT - Effect Data - Value 828 ??????
FortifySkillConjuration4: ENIT - Effect Data - Value 284
Should be 207 instead. Can easily find the value by looking at similar potions, f.ex. FortifySkillDestruction3 has the same progression and its third potion has the value 207 which makes much more sense.