Talk:Specials/@comment-70.178.200.92-20200307064552/@comment-5849797-20200307194954

The combination attacks are a little buggy at various points throughout the game. However, your issue sounds like something different. If one of your party members is afflicted with BlowBack or Fear or a similar status condition, using Sync Your Breathing! has no effect because the other party member can't do anything that turn.

I'm pretty sure Pet Shop is capable of inflicting BlowBack, so I'm pretty sure that's what your problem was.