@D.JohnWick you have a few options then:
- Replace the Empty lists with an object the function runs on and then remove that value.
- Use a code block to force the order of operations to return the correct value.
- Use an If statement to perform functions based on a result.
Option 1 and 2 are described here.
I really like the second option which @Aaron_Wagner gives in post #2 of that thread.