I have a Gen1 Flirc and has been working fine. Opened app this am and said there was a firmware update (3.27.5). Loaded update and when I plug the Flirc into the usb port, the app closes. I rebooted windows (11) with the same results. Without the Flirc plugged in, the app does show that it is running 3.27.5. Plug the Flirc in, app closes.