AI Crowd getting Stuck before reaching Spline Escalator

I am trying a create Crowd AI simulation where AI can move on escalator using spline. Logic I have setup is one they reached Spline start Point, itween for Spline movement takes over but the problem I am having is first AI charactor goes through spline escalator smoothly and then one that follows jitters a lot before reaching the spline start point and goes through spline.
Here is the attached video of the problem I am facing

I am also attaching behavior tree logic

Is there some setting that I am missing here,


Do you have Avoidance on? If so try turning it off, it looks like it has to do something with that…

It is turn off in character movement component but I am using detourCrowdAIController where I don’t see an option to turn it off inside Blueprint editor.