I downloaded the full release of UE5, but the path tracer isn’t working. All settings are enabled RHI dx12, Hardware Raytracing, and Path tracer. The option for path tracing doesn’t show up under the lit tab. My graphics drivers are up to date. I thought maybe it was a problem having installed the preview build. Uninstalled all versions and did a fresh download. Still not working. On a side note, path tracing works in Twin Motion. My GPU is
a GTX 1080, Windows build is above 1809 version. Any ideas, or is this a known bug?
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I have the same problem, i have a gtx 1660 super though, maybe our gpus dont support path tracing in ue5.If someone has a solution please post,thanks.
Yeah, hope someone has a solution. I find it hard to believe it wouldn’t support path tracing . I can use the path tracer on 4.27 and Twinmotion.
Also unable to find path tracing under lit up menu.
Same here, RTX 3080, drivers up to date (studio drivers), Windows 10 19043.1645, and all settings enabled 
Try to add this to your DefaultEngine.ini :
[/Script/WindowsTargetPlatform.WindowsTargetSettings]
DefaultGraphicsRHI=DefaultGraphicsRHI_DX12
+TargetedRHIs=PCD3D_SM5
-TargetedRHIs=PCD3D_SM4
-TargetedRHIs=GLSL_430
-TargetedRHIs=GLSL_150
It’s working for me now 
I tried it didn’t work. Glad you found a solution.
To be clear, does this go in the DefaultEngine.ini
under the individual projects file? example path
C:\Users*usr\Documents\Unreal Projects\Project Name\Config\
Oh
Yes absolutely !
I have this issue as well, GTX 1070. It worked perfectly in 4.27 though. And that solution adding those lines to the config didn’t work either. ://
This worked for me:
Under Platforms - Windows
Default RHI : chose DirectX 12 instead of Default
which GPU you are using?
I was using a GTX 1080. All of the suggestions above failed to work for me. I ended up buying a 3090 since prices dropped. Problem kinda solved. I used the brute force money fix.
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Thanks. I tried that. Didnt work. This seems to be a problem for older cards.
Upgraded card. No longer an issue for me. Problem still exists for others. Hopefully they find a fix.
Geforce RTX 3070 Ti
There are 26 files named DefaultEngine.ini in there… which one is the right one ?
Just noticed today. I have two computers. Both have 3070 RTX FE cards.
My newer build i9 computer has same settings as old computer (Dual Xeons) but the newer computer when running UE5.0.3 does not have Pathtracer in the “Lit” list in the 3d view when the older computer does.
Not sure what the difference is.
seem not work for me too in 5.1 pr1!
Same here, I do have path tracer on UE 5.0 but not on UE5.1, I remember having to add some files I found on some forums to make it work for 5.0, but cant even remember at the moment the whole process I went thrue, but I remember it took be quite a while, will have to troubleshoot that once again… what a pain
Anyone ever find a fix for this? My card is only a 1660 Super, but Ray / Path tracing were working fine in 5.0. Now they are gone with no indication of why.