I just started a new FFVI game, and I have a problem. Locke is only stealing Tonics. I just left the cave that leads to South Figaro. The Rhinotaurs around the Overworld there are supposed to drop Mythril Claws, but I have only been getting Tonics from them. I've stolen from them about 4 or 5 times. My guide says that they drop Mythril Claws, plus I remember getting them in my last save file. Locke is at level 9. I don't know what I'm doing wrong.

It's not just the Rhinotaurs, either. Every enemy that I have stolen from (except for Marshal) has given me Tonics. I already have 57 Tonics. I'm pretty sure it wasn't like that in my last file.