i am saving my presets as subnetwork
from the pic you can see different problem,

1)i did trial and errors and as you can see my preset got saved many time. How do i remove those extra preset ( i cannot find in the gallery manager but the original one)

2)the icon shows in my gallery manager but not on the node in the network view

3)you can clearly see that there isnt any extra preset on my node's preset list