Child component is displayed beneath parent comonent

I am currently having trouble with adding child components to a custom parent component while using angular.

The child component is rendered under the parent component instead of inside the parent component.

I know this bug came up once but I am not helped by the React code as reply due to different way of coding.

For example I am creating a Hero where I want to be able to drag and drop a custom component in the hero. But this component is rendered under the Hero see image.

Please help me to fix this. I love this platform but that is one bug that is so hard to fix.

Here you can see my code:

Hello @Robbe-Van-den-Hove,

Could you please share the complete custom component code or code sandbox for us to be able to reproduce this?