Behaviour tree task not working on success

Here’s a link to a video of my problem Unreal 4 behaviour tree task problem - YouTube

Not sure what’s going on as the pawn is capable of moving but when it get’s to the ‘MoveTo’ task it doesn’t work, also the task ‘Set_PatrolPointLocation’ which is completing successfully, keeps going off when it shouldn’t.

Don’t have a clue what to try here, it was partially working the other day, then suddenly stopped.

Any help is greatly appreciated, thanks.