Cant paste any images into any layer

Im trying to paste things into asperite to work on them. When I paste a png it just shows the png icon. Ive tried many different ways including pasting, dragging and dropping, etc. When I drag and drop it always creates a new file instead of going where I need it to. It does the same for asperite files, and just shows the asperite icon. Is there anything I can do.