Let me explain (lordryo triggered something which made me realize the problem), IF/Compile Heart have a special program for their lip syncing. It auto-moves to the dialogue that is spoken. So, if there's no spoken dialogue, it won't move naturally. But, it's a very neat thing, because it also is compatible with English, so, there's not the complaint of the lip-sync being off. Plus, they don't have to even try to make the lip sync synced. It's quite nice. Sorry I didn't realize it sooner.