Guys,
Just a heads-up that with UE4.9 and the destructible components set to always be skinned on the CPU (I had a variation of the patch where only the destructible meshes would be cpu-skinned), we had a crash of the nvidia driver for versions 355.XX and up. Before that (353.XX and older), we didn’t have any crash. I’m unsure on why this change made the driver crash, but anyhow, reverting that patch to stock-UE4.9 code has fixed the driver crash and the flickering seems to be gone too.