Switch Local Communication Help

[elite_35p]

Me and someone in the same room with two switches and two copies of the game wanna play together. When either of us host locally, we can't find the other person. (wifi off or on) If we host online we immediately find each other. Can someone help explain how to make this work, online has a lot of lag were hoping local play wouldn't.

 

[Protein]

My partner and I are having the same issues down to the online lag and everything. We've played local for hundreds of hours before now it seems like a new patch bug.