I think I have everything straightened out. According to The Loud House Encyclopedia wiki, the episode "Road Tripped" was changed to "Tripped!". Clyde McBride's voice actor has changed due to the first actor going through puberty and his voice changing. I'm not sure if a fourth season has officially been announced, but we'll leave it for now.
As for Ángela Castañeda, she has done what I've seen a lot of people do: they try to "help" by filling in details that haven't been officially announced yet. For example, if there was a character named Mumford who is a teenager, then that means he had to have a mother and a father, so they create the mother and father and give them names despite the fact that neither one has been seen yet.
They usually don't mean any harm by this, but they don't realize that they're adding fan fiction as if it were a fact. It's something I'll have to address with her and one other person.