My controllers used to connect to Wiinusoft but they don't anymore. If my controllers are connected to Windows Bluetooth and I press the sync button when Wiinusoft is searching for the controllers, nothing happens. I removed both of my paired controllers on Windows Bluetooth and proceeded to try syncing the controllers again. Wiinusoft finds them at first but then the sync tab closes and my controllers don't appear in the software. They automatically pair with Windows Bluetooth and as I said, I can't sync them at all when they're paired.
I'm having this same problem.. the results seem completely random. I tried the other fork and it manages to get a controller to the right column and it deletes itself off both columns leaving the controller paired with the OS and undetected by the software. I've been fiddling with it for over an hour now