Why is my project always compiling shaders, when i start it ?

Hey there,

I have an problem with my unreal engine. Every time i start my project and i see my default level it compiles 16.000 shaders. The thing is that only small static meshes are compiling, the rest is already compiled, but still it compiles 16.000 shaders. Is that a bug or is there an solution to this, so it only compiles one time ?

Thank you in Advance