Legacy4J Version

1.21-1.7.4

Mod Loader Version

Fabric 1.21.1

Bug/Glitch Occurrence Context

Use MacOS (Sequoia 15.1.1)
Download and open Legacy4J
Connect a single controller — it is detected, and all functionality works as expected
Connect a second controller — upon doing so, no controllers are detected, including the first one

I tested this with two Switch Pro controllers, a Switch Pro controller paired with an Xbox 360 controller, and a Switch Pro controller paired with Joy-Cons. All of these controllers work properly with other software, even when all are connected simultaneously for multiplayer games.

Crash Report

No response

What happened wrong?

When a single controller is connected, the game detects it and functions properly. However, connecting an additional controller causes the game to fail to recognize any controllers, including the first one. The issue persists until the second controller is disconnected, and the game is restarted. Notably, the controllers function correctly with other software.