Having a method of type Tuple in a UdonSharpScript causes the Udon compiler to crash with a NullPointerException. Suggested change: Add Tuple support, or implement a proper "Tuples are not supported" error message.
Code to replicate error:
public class Test : UdonSharpBehaviour
{
(int, string) ReturnsTuple()
{
return(1, "two");
}
}