When I started listening to The Blade Itself (First Law series), the narrator was saying grim-ACE. I had always said and heard GRIM-iss. Was driving me crazy. Looked it up. Turns out that is a correct, though rarer, alternate pronunciation! So yeah, I learned to be less quick to judge.

Let me guess— Kate Reading and Michael Kramer? Because they did the Wheel of Time series and are notorious for the amount of pronunciation disagreements in that. Also she pronounced topiary as toe-PIE-uh-ree.