Fun game, minor glitch with Pokemon with alternative forms. They don't seem to get time stamped correctly. When I catch them they sometimes say they were caught before my original starter in the "order caught" sort order. That only happens to Pokemon with alternate forms and colors. Galarian Forms, Alolan Forms, Pumpkaboo, Minior, stuff like that.
That sort order could also use a change anyways. Seeing just my oldest Pokemon is not super useful. Newest first would be significantly more useful.
