Try uninstalling the device via the Printers & Devices section of Windows. Turn the saber on, connect it with the PC, wait until the driver is re-installed, then open the launcher and look if the problem is solved.
As for disconnecting, always close the launcher first, then unplug the saber, then turn it off. Never do it in a different order because this can cause several connection and driver issues!
It worked! Lightsaber back to normal!!
Thanks all for the advice!