His Grave Command/ soul crystal

Hello, I've noticed a problem. I got a Priest of the Sun in Soul Crystal, but it only uses auto-attacks and loses all the other abilities it should have, while Tame Beasts, on the other hand, lose none of their abilities. I don't know if this is intentional. I know few people use the item, but I wanted to let you know. The problem also exists with Dessicated Lich P.S.: Sorry, I used Translate.