[Audio] Emerald Rival Battle Music

So I've recently noticed a small bug in my project that and I haven't been able to figure out what's caused it. Essentially, when battling Brendan or May, instead of the rival battle music playing, the regular trainer battle music will. The weird part is that when battling Wally the rival battle music will still work. I should clarify that I haven't edited the scripts for those rivals battles at all. If anyone has any info on why this might be happening it'd be greatly appreciated.