Why is "Recruit" not working for Sweet's mission "Los Sepulcros" in GTA: San Andreas on Windows 10?

I am playing GTA: San Andreas on a Windows 10 environment and have reached the mission "Los Sepulcros". However, I can't complete the mission because I have to use the "recruit" feature to start. The in-game tutorials tell me to aim at a gang member (using rmb) and press G to Recruit but it doesn't work. Is this something to do with Windows OS compatibility? I ask this because when I first downloaded GTA: SA, I had my mouse working improperly (I solved it by downloading the application extension "dinput8.dll").

There is a similar problem faced by someone else as well: Magnet not working in Zero's mission "New Model Army" in GTA: San Andreas

I have tried enabling the frame limiter as suggested in an answer to the above question, but it doesn't work.

Solution 1:

If this problem ever occurs to anyone else, just go Options > Controller Setup > Redefine Controls > Foot controls You'll see this:

Like I said, to recruit I had to aim at a gang member and press G. If you look at the image, you can see there are two alternate controls for aiming (del and capslock). When I use del to aim rather than rmb, it works. But when I use rmb, I can aim, but nothing happens when I press G.

What you can take away from this is if a particular control doesn't work the way expected, try the alternate controls.