A lot of the Arcane Backgrounds something happens on a roll of '1' on your Spellcasting die. I originally read this to mean that only if your total was a natural '1', i.e. your first roll was a natural '1' then the bad stuff happens.
I heard that at least one other referee takes this to mean, a '1' even if you rolled it on an Ace. For example, say you have Spellcasting d8 and you rolled 8,8,1 then yes you get a success and 3 raises but you also get a backlash.
Is this how it is meant to be?