Abstract component in creator 2.4.4++

I’m use cocos creator 2.4.3.
In my project, I’m use more abstract class extends cc.Component anh use it in controller class. I can drag class extend abstract class in my controller. But, I’m update creator to 2.4.4++, I can’t drag class extend to my component.
ex in creator 2.4.5

in 2.4.3