Magic Mouse not working in macOS Mojave

I resolved it by deleting:

• com.apple.AppleMultitouchMouse.plist, and

• com.apple.driver.AppleBluetoothMultitouch.mouse.plist

files from user ~/Library/Preferences/ directory.

Lets try to fix the BT

Hold Shift + Option and click on BT in the menu bar.

Then select Debug.

Then do the obvious.

Yeah, I did this too. Still doesn't work. What is weird is that I connected the magic mouse to my old iMac running Lion and the right click works just fine. I did all the troubleshooting steps but to no avail. I went and bought a new Magic Mouse 2, and the right click works just fine. Kinda sucks that I had to buy a new mouse, but now I have a nice mouse for the old iMac!

I've had to repeatedly remove the mouse from the Bluetooth connections list and repair, which works a while (day or so) before it goes 'missing' again. Haven't found a solution yet that fixes the issue!