We seem to be hitting a similar issue with the landscape.
We have tried setting the TdrDelay and TdrDdiDelay to 60 in the registry, and installing the latest graphics drivers, which did help in some cases, but there are some sequences that still cause issues. What we are seeing is a crash on the first frame, or spurious landscape rendering over the top of the scene.
Graphics card: NVIDIA GeForce RTX 4070 Ti
Component Resolution (Verts) 255 x255
Sections 2 x 2
Components 32 x 32
We have found a workaround which is to manually delete nearby LandscapeStreamingProxy actors which are out of shot. Doesn’t seem to matter which LandscapeStreamingProxy are deleted, just need to get rid of some.
Any idea what might be wrong? Any help would be appreciated.