Aim assist disappear

I am a pc player playing apex on steam. I use the Xbox wolverine controller. After I open the sens of alc, I lost my aim assist. After that, I turn off the alc setting but the original 4-3 linear small deadzone also lost the aim assist. I have tried to uninstall the game and delete all the file and redownload the game. However, it still does not have any aim assist. I have it before.  Anyone can help?