Hello. My kamvas 12 wont show the picture loaded on photoshop only the desktop

  Hello. I have no got my kamvas 12 and my photoshop connected. In the App Huion tablet I have add photoshop to the list in the settings. When I load photoshop and load an image I can draw on it from the kamvas tablet but photoshop and the image do not load on the kamvas screen so all I see is my desktop, but the pen does work. I can draw on the photoshop image but i do not see it show up correctly in the tablet. Do you know why this is ? thanks for any help.