hi @gdlcf88

Can you test this case?

https://localhost:44000/api/my-endpoint?pages[0]=&pages[1]=

What is the value of public List<string?> Pages { get; set; }?

Emply or two emply items?

Thanks.

I happened to test this case.

The debugger said that there are two items in the List<string> parameterValue and both of them are null.