Kaycee Boss softlock

[ValsVonValentine]

Kaycee boss "freezes" (haha) upon completion.
Unable to draw cards, play cards, end my turn, use the hammer, use any items, and the fight never ends,

[Arackulele]

gonna need more info here, like a console log or additonal parameters, as kaycee doesnt softlock under any common conditions especially not after the fight ends.