Left analog doesn't work in-game

[Pizzer]

Hi, I'm a newbie to PPSSPP and when I played MGS: Peace Walker couldn't move. I've tried using a keyboard, a controller and even the touch on-screen controls and still couldn't get the left analog to work. I had disabled cheats and in the test option, the analog movement was recognized. I've tried using the same .iso in my phone and could move there. If it makes any difference, I've installed PPSSPP in my pc using the .zip.