User blog comment:Xilinoc/Ch. 584 - THE HEADLESS STAR 3/@comment-24031741-20140611150325/@comment-5398287-20140611150820

Ichigo told Candice to dodge his attack because he's always been sort of amicable toward his enemies. He hates Yhwach for the destruction of the Seireitei, not any particular Sternritter.

Bazz-B attacked them because, as I mentioned in the blog, he's a wildcard and serves his own agenda. First put on display when he started fighting Hitsugaya at the beginning of this invasion despite Yhwach's decree that those who stole Bankai should rematch their victims: he's clearly willing to ignore orders.

If you're referring to Ichigo just standing there, that's more a sign of development than anything else: rather than rushing blindly into combat, he was sizing up the situation, since 8-on-1 could prove to be a bit much even for him.

Also, he didn't break Quilge's jail; he couldn't, no matter how hard he tried. The jail just kinda deactivated after his Quincy powers were awakened.