So for some reason when I changed my lead Pokemon, it went invisible. I tried to battle but both Pokemon were invisible as well… The only Pokemon I can see is my starter when following/battling. What happened??
This just happened to me hopefully what helped me helps you.
Try fainting your party even if you can’t see them. If that doesn’t work try going to a Pokemon Center and healing your party.
If there aren’t any wild encounters near you, use the Dexnav to have trainer battles.
Hope this helps you!