So your crab IS turning 180 degrees! It’s just hard to notice because it’s flat.
The problem is possibly the “Get Forward Vector” on walk forward, I’m not sure that actually updates. Try using “Get Actor Forward” instead! 
So your crab IS turning 180 degrees! It’s just hard to notice because it’s flat.
The problem is possibly the “Get Forward Vector” on walk forward, I’m not sure that actually updates. Try using “Get Actor Forward” instead!