Encoding textures getting stuck

Hello Folks,

               I'm working on an architecture scene where i have some static Spots, one directional light, one stationary skylight and some static meshes. i have no idea where i went wrong because my Encoding textures getting stuck and also using a lot of processor. Please help as i'm new with UE4. 


The error can be produced by the instructions of the material instances, try pressing F5 when testing it on the viewport, you should be able to see the shader complexity there. Do you mind taking a screenshot of the level?

I was low on hard drive space and so it would hang at encoding textures for hours and hours. Cleared up the hard drive space and voila, we’re good to go.