I can confirm that I’m also having this issue. It’s not emulator specific at all, mine disconnects even when I’m just in the menu scraping for game content.

Unplugging and plugging the controller back in works for about another minute or so and then it disconnects again.

I’m using a RetroUSB NES and SNES Controller and they both have the issue. My power cable is a USB Micro cable I bought at a dollar store that’s just drawing power from my SmartTV’s USB port.

Is there a trace I could run that could determine the cause of this problem?