ok, hope this one gets a workaround. I'm able to reproduce it a bit too easily - so will definitely have an impact on overall workflow.
Does not happen with v3.

Which API does MoI v4 use - OpenGL, DX ? And are there some config options to force a specific API? I'd like to tinker a bit as hopefully this one might have a workaround (like Nvidia triple buffering redraw bug).