Currently, I tried to add powerapps grid control component into my forms. However, it is not displayed when i preview my power page. Does anyone else face this issue? Is powerapps grid not usable in powerpage? If not usable, then how can we display a grid or table of data that is editable and allows us to add new lines?
I added powerapp grid control into my subgrid component.

But sadly, it doesn't display when i preview the app.

Anyone can advice? Thanks!