Need help with atrocious smearing

Link to the recording, because direct upload doesn’t work apparently

When anything passes by a shadowed area, it leaves behind an unshadowed trail, as if the shadows needed a moment to catch up and, dunno, un-cull themselves.

I’m using 5.6, with Lumen and VSM, high scalability settings, TAA. I know that Lumen can cause smearing when performance is low, but as you can see, it’s solid 60 FPS. Also, it can’t be temporal smearing from antialiasing, since it occurs even when antialiasing is completely disabled.

Link doesnt work. Try sharing a youtube link.

If I had to guess, it’s likely a screenspace effect, possibly Lumen’s SSGI.

Try r.Lumen.ScreenProbeGather.ScreenTraces 0 and see if that fixes the issue.