Hi @dwn, I'm having the same issue with my Late 2012 iMac running Catalina. My Xbox One Wireless Controller only seems to support the micro gamepad profile. Did you find a solution or workaround for this?

I've been playing around with this more and noticed that I only see the hitch when I'm running my application with the LLDB debugger connected. If I run my app standalone, it seems to work without a hitch. Could LLDB be interfering with NSEvent dispatch somehow? Is LLDB doing its own processing on my key events before it reaches my app?