postprocess outline with instanced stereo on?

Hey,

I’m using Tom’s outline material (http://www.tomlooman.com/outline-effect-in-unreal-engine-4/) and while instanced stereo is off everything works fine. As soon as I turn it on about half of the outline goes missing though.

Does anybody know a solution for this?
Or if this is inherent to how instanced stereo rendering works, any ideas how this could be done alternatively? (e.g. rendering two objects with different materials on top of each other is not really what I want to do but will probably work…)

Just turning it off works for right now but the performance hit is quite significant and get’s me in trouble on some of the machines this needs to run on.

Thanks in advance!

98661-outlineinstancedstereo.jpg