Attached are surface model and transform to reproduce the issue (tested when showing slice intersection with Brain Tumor MRI 1 test dataset). See attached screenshots. The issue is that intersection is changing if I move the slice view (Shift+left mouse button).

I mark this as major, since model slice intersection is very useful for image-guided interventions (e.g., intersection with the needle model), and incorrect visualization can be dangerous.

I was not able to reproduce this with manually created rigid transformation and sample data.