Yes, I've been using the basic one since I saw that someone commented that I couldn't open it and I downloaded the zlib.ndll file.
Null variables were created when you place an object that has defined variables, and when you delete this variable from the workspace, you can see that in the room editor, the variable is still maintained, but it becomes null. It is illogical.
Will there be any update for the server in C#? Anyway, for now, when modifying code I will use the basic one and for editing rooms I will use the alternative one.
Thank you for your help.