Here is my commandlet
E:\UE_5.1\Engine\Binaries\Win64\UnrealEditor-Cmd.exe “E:\PolyCoreUE5\PolyCoreUE5.uproject” -run=ShaderPipelineCacheTools expand C:\PSOCache*.rec.upipelinecache C:\PSOCache*.shk C:\PSOCache\TEST_PolyCoreUE5_PCD3D_SM6.spc
I recooked project and then recollect .rec.upipelinecache but is still doesnt work. Shader Tool works but is says that no one job was done. It doesnt create .spc file