I just had to uninstall Photoshop Beta and revert to prievious version the Beta no longer allows me [MAC desktop] to drag and drop as a new layer to opened image files in Photoshop! Prior version works fine asd it did before.
Drag & Drop images functionality not working properly in this last version. It's possible to drag & drop a file into a new photoshop file, but dragging and dropping a file into an existing opened photoshop file isn't possible anymore.