Problem with getting imageEntity

Hi I’m trying to get imageEntity of ButtonComponent as type pc.Entity, but unfortunately playcanvas returns me always a guid string. instead of Entity. According to the documentation, it should returns me pc.Entity. Could someone help me what i’m doing wrong? I have the same problem with “horizontalScrollbarEntity” and “verticalScrollbarEntity”
Playcanvas v1.57.0

[Entity] imageEntity
A reference to the entity to be used as the button background. The entity must have an ImageElement component.

this.entity.button.imageEntity

There is a bug with this unfortunately that has been difficult to address.

For the moment, please use this with https://developer.playcanvas.com/api/pc.Entity.html#findByGuid