Maximum call stack size exceeded when apply click event on BILLBOARDMODE enabled meshes

Refer to the link below, for billboard enabled meshes, I added mouse pick event so the camera will target to the mesh which being clicked.

However, after several clicks on different meshes, I got the following error.  I'd be really appreciated if anyone can fix this issue.  Thanks.

https://www.babylonjs-playground.com/#9XBPW4

Quote

38babylon.js:1 Uncaught RangeError: Maximum call stack size exceeded
    at m.h.computeWorldMatrix (babylon.js:1)
    at m.h.getAbsolutePosition (babylon.js:1)
    at n._getTargetPosition (babylon.js:1)
    at n._isSynchronizedViewMatrix (babylon.js:1)
    at n.c.getViewMatrix (babylon.js:1)
    at m.h.computeWorldMatrix (babylon.js:1)
    at m.h.getAbsolutePosition (babylon.js:1)
    at n._getTargetPosition (babylon.js:1)
    at n._isSynchronizedViewMatrix (babylon.js:1)
    at n.c.getViewMatrix (babylon.js:1)

        if (!m.actionManager){
            m.actionManager = new BABYLON.ActionManager(scene);
        }
        var act = new BABYLON.ExecuteCodeAction( BABYLON.ActionManager.OnPickTrigger, pick );
        m.actionManager.registerAction(act);

    function pick(evt){
        var mesh = evt.meshUnderPointer;
        camera.setTarget(mesh);
    }