Bug with the online batling system!

everytime i fight my brother he only appears with one pokemon plz fix :smiley: and sometimes when battiling with my other brother it crashes out of nowhere

Do you mean in-game battling or the battling simulator on this website? In-game battling is currently bugged, you can only battle on https://battling.p-insurgence.com/

i meant in-game battling do you know when its gonna be fixed?