The game has a problem

I'm referring to Himiko Toga, who, when I transform into a character in my party, can't use the rising ability of the character I transform into. Her rising ability does, but it's hers, not the character I transformed into. For example, I transform into Shikaraki, who I have in my party, and I want to use her rising ability, but instead, Toga Himiko's rising ability does, not Shigaraki's. I hope you understand.