Hi Yaeko,
I’ve grabbed latest Release 5.1 code, 6900XT, installed 22.10.1 driver and followed your repro steps. On my end everything works fine and I can’t see any black walls. Any ideas how could I repro it or another project to try? Attaching screenshot how it looks like on my end.
EDIT: actually reproduced it in another level.
EDIT2: You can fix by using “r.Lumen.ScreenProbeGather.Filtering.WaveOps 0”. Also a workaround was submitted to 5.1.