So i reverted back to the prior FW from Henry and my mouse is now dead.
My email back to Henry was:
"So after reverting back to the given FW, my mouse is now completely
dead. No lights, doesn't work, no CUE acknowledgement or anything. Ive
reinstalled CUE, restarted etc. no avail. Now when i unplug and
reinsert the mouse into a USB slot, windows reads it as a removable
memory, and gives me an error. In devices and printers it shows it as
"Unknown USB device (Device request failed)"."