I think I found my problem.
I was using a custom pawn which hadn’t overridden the method GetSimpleCollisionCylinder() for the PathFollowingComponent. So I never actually reached my waypoint perfectly hence the Blocking message from the VisLog.
If you come around to this Trello please make sure all pawns are capable of using the PathFollowComponent.
Thank you for your help the VisualLogger is awesome