Out of curiosity, did you modify the save in any way? Maybe importing raids, editing seeds, that kinda stuff?
Also, the seed of the area is determined and saved. So even if you import the save onto your Switch, the bugged seed is already determined, thus those mons will still show up the same. Or is this save from after you move to a different location, trigger different spawns, then went back to check?
Edit: Also, you probably shouldn't share your save online. These games likely have online save verification similar to PLA, and you wouldn't want to be unable to use your save online.