When the controllers don't work correctly, the following could be the reason for it.
Restarting SteamVR might fix the problem.
Updating the firmware on controllers might fix the problem.
Updating Windows to the latest version might allow the WinMR controllers to be recognized.
If the automatic update doesn't fix the problem, downloading the latest major update from https://www.microsoft.com/en-us/software-download/windows10 might fix the problem.
With VIVE controllers, refer to Operations｜VIVE controller is not recognized even after powering it on for possible fix to the problem.