Apple Pencil Pro won't write or do any action upon start drawing

I put my pencil pro on top of the iPad Pro M4 13 inch and after hours when I pick it up the pencil does not write and it does't do anything, as if it is disconnected. I have to put it on top of the iPad multiple times to connect it again. Did they even test this product once? All people are nagging about this which I think it's totally to the point.