Hi Quaritexa, ok so yes the problem is that when setting the cplane the ortho view's target point did not get updated. MoI does not use the target point on the Top/Front/Right views for anything so that's why it went previously unnoticed.

I've fixed that now for the next v4 beta and also I've added in an optional additional parameter to vp.setCameraAndTarget() so it can take an "up" direction vector to set the view rotation around the camera->target line. So that will be an additional way to control it.

- Michael