I'm still getting the corona interactive render bug when having "limit to visible" active under the camera roll out. I was happy to see the bug "fixed" in the changelog for 7.0.8 and updated right now. But problem is still there and it only goes away if I uncheck "limit to visible".
I can't recreate the bug in a new scene, but it's still there in my current project scene. I have sent it to your helpdesk email, with subject: FP Corona IR bug still in 7.0.8. Maybe it has something to do with keyframes/animated camera?