This is from the GRIDELIN save file:
This one is from your save file(project 402):
Hatched Pichu, Pikachu and Normal Raichu can all be in Beast, Dream, and apriballs available in USUM. Apparently, Alolan Raichu is flagged illegal. If both Pichu and Pikachu is legal in Beast, Dream and apriballs, shouldn't Alolan Raichu be legal too?