having a 2nd and 3rd cascading dropdown list off a first dropdown

so, i created a dropdown list, then using the =INDIRECT function and named cells i created a dependent drop down from the first, works great! but now i want a third dropdown list off the first dropdown list. but when i try, excel just asks if i want to change the named cells.

I have created a mock up (attached)

the green list is fine and works as intended

the pale blue list should also work off the first but when i enter =indirect it just automatically uses the green list