USB Mouse
Mouse worked perfectly but without changing anything mouse stopped working as did the Trackpad. I have a Macbook Air w/Big Sur. (11/6.1). Both Thunderbolt outlets have multiple USB C adapters.
When I boot, same problem! If I remove the Thunderbolt that contains the mouse and immediately plug it back in, both the mouse and the trackpad work. I reinstalled Big Sur, but still the same.
What's the problem?