Sure! In order to make their Super High School Hope. They literally went in and lobotomized Hinata, suppressing his real personality. It was digitally reconstructed kind of like a recovery program. but all that work is still in his real body. He can't exactly go back to just being himself.

We don't yet know if Kamukura is suppressed now, but like I said it took sacrificing his original self to create him in the first place.