We get the following warning for every single mesh/material in our 5.6 project:
LogRenderer: Using fallback RTPSO
I’m finding next to nothing on Google about it. I’m on a 4090 but it happens on every machine we’ve tested. Any ideas what it means, if it’s bad, and how I can address it? Our project us using:
Lumen
No nanite
Lots of procedural meshes
Custom depth stencil
Hello there @Ken.Brueck !
Checking around the community, that error you are getting is most likely a warning tied to a patch tracing conflict with your assets. Yet, from your description, this is not causing a crash, or a performance drop in your project.
On itself, the warning should not be a major issue, unless you start encountering unexpected behaviour or graphical glitches in your scene.
Still, if you want to get rid of the warning, the best approach would be performing a shader cache clear. Close UE, go to your project’s directory, and delete folders DerivedDataCache and Saved/ShaderDebugInfo. After that, allow the project to rebuild the cache. If the issue persists, reducen Lumen and Ray Tracing values to ease the load in your system.