ArgumentNullException: Value cannot be null.

What problem? Do you also have a NullArgumentException? Or do you talk about anything of the many other topics this thread has evolved into? Please ask your own question in a separate thread and be more specific what you want to do. If you’re looking for a rubik’s cube movement, I once posted a script that handles all the potential movements a rubik’s cube can perform.

Though as I said, please create your own thread. Feel free to post a cross / reference link to this thread, but don’t try to hijack this thread.