For some reason, the Dash Engine input consistently fail to register during the giant rolling crustacean boss. And only that boss oddly enough (didn't have the issue in the game's final battle despite it demanding even more air dashes). Given it seems you're expected to air dash over its rolling attack, that makes it very hard to fight.
I can consistently beat it by hugging the wall and wall jumping whenever it rolls around but this feel very unintended. I also don't remember having that input issue back in the previous version.
Wonder if it's due to my controller or if anybody had issues with this boss.