Im trying to play fortnite on Xbox one using x-aim , however i am having a horrible problem when moving my mouse up or down directly. For some reason i get a weird zig-zag like movement that is making the game unplayable , this doesn't happen when moving the mouse in any other direction , only up or down. I've included my x aim settings in this post and the reason i have my Y axis sensitivity higher than my X axis is because i noticed that it helps to stop the zig-zagging , although it doesn't remove it completely. This problem is really annoying so any help would be great

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