Why did Cynthia's Glaceon not appear in any episodes set after "All for the Love of Meloetta"?

MrCarle

What's up, guys? I knew that Cynthia's Glaceon appeared only in one Pokémon the Series episode, "All for the Love of Meloetta", but not in any of the others set after this. Now I wonder why you think?

MajorBrendan

I would like to see More of Cynthia's Glaceon.