Wii Remotes fail to sync in Bluetooth Passthrough

[platypus]

I've been trying to connect a real wiimote and an unbranded one in Dolphin on my Windows 10 PC but simply cannot get either one to connect no matter what I try (they both work flawlessly on my real wii console). I purchased a USB Sensor Bar Receiver and also purchased a Bluetooth 5.0 dongle which apparently has the CSR8510 chipset (adapters with this chipset all seemed to work in the "Adapter test results" on the Dolphin website). I replaced its driver to "LibusbK" using Zadig, selected the "Passthrough a Bluetooth adapter" option in the Controller Configuration dialog, opened a game, and pressed sync on the remote and then pressed my sync Hotkey in Dolphin. I tried this over several days but the four blue lights on the remote keep flashing and nothing ever connects. I also tried all sorts of different variations with settings (including trying to emulate the real wiimote option for the official remote) and different drivers and nothing has worked. Can I do anything differently or am I missing something? Or is it more likely that the sensor's not responding properly or the Bluetooth dongle just isn't fully compatible with Dolphin and I might need to buy another one?