UE4 Advanced Vehicle (The Buggy) Broken

Hi All, for some reason the buggy on my ue4 is broken, don’t know how or how to fix, need help. Has been working fine.

I press play to test something, all good. However the moment I click on the screen to use the buggy, the buggy locks on a right hand turn and engages reverse, the steering when (A) is pressed with only go half way to centre and therefore still turning right, pressing (W) to go forward only gets me going in a circle, depressing (W) locks wheels up and engages reverse and slowly reverses on engine idle.
Has anyone come across this and a fix?
Is there a rest for buggy anywhere?

As far as I know I’ve not messed with anything in it’s settings but you never know.

Thanks in advance.