Disconnect TQS and check if this behavior continues, also if you have the possibility change grip to try with another one, remember the grip from warthog also works, on this way you can check if they are a problem of electronics on the Cougar base, TQS or Grip, etc
The Cougar needs to be completely shutdown when you power off the computer, if not they will does not work properly when you restart PC, on my case i poweroff the PSU ever.