Okay, so maybe I'm losing my mind, but...
The silence status ailment isn't working properly for me. Some of my characters' spells are being blocked by it, others aren't - and I'm not exactly sure as to why.
I've tried examining the ones that aren't working and the ones that are, and there's no visible difference between them. I'm using YEM.
I'm sure it's something really simple that I'm overlooking.