Digimon World Re: Digitize sound problem in build 2991

[gid15]

Something happened in build 2991 with the game NPJH-50588 which is Digimon World Re: Digitize, and no. I'm not talking about the already known issue with the graphic glitches.

This time all the sound effects got messed up. The digimon doesn't make their correct sound effect, the tamer's voice on the battle sequence isn't heard when you use the battle commands (call, run, etc.) which before this build it did worked normally.

The sound effects when the tamer and his digimon walk are all messed up too.

This didn't happen at all on the previous builds.

Do you mean that the sounds are playing correctly on r2990 but no longer on r2991?
There has been changes to the sound methods in previous versions, so I'm trying to localize which version actually broke the sounds.