When setup DefaultFileScope=App, Asset,Private receive Error 1101
When setup DefaultFileScope=Legacy or Shared Picture is received but Canvas is not present:
according to your screenshot, you like to download to the shared storage /Download... in this case you should set the Default FileScope to Shared...
alternatively if you don't want to share the downloaded image to other apps, you can set the Default FileScope to App and download to the ASD - application specific directory...