Link breaking problem

Link breaking problem

There is a general breaking problem in the links in Gojs. How do I solve this problem ?

What are the exact node bounds and values for fromSpot and toSpot? The link has orthogonal routing, yes?

My guess is that the centers of the two nodes are not exactly at the same x coordinate value. So the link must shift slightly horizontally in order for the link to connect the two port connection points.