
My controller constantly disconnected when playing online only, both in casual and ranked matches. This is a Switch Pro controller.
It never occurs offline.
I used to have controller disconnects too. The first thing I did was change my usb cable, that fixed it for some controllers but still had disconnects with others. I searched for controller disconnects on the rivals discord and saw that there’s quite a few players having disconnect issues. Funnily enough when I switched my preferred controller to bluetooth, it’s been perfectly fine.