uhm I see. Im not completely sure this will work but you can try this:
in your dev pc load up the editor, fully load every package and load every map so that you’re sure every shader is compiled. then go to UDKGame\Content and copy all shadercache files from there to your dedicated server. if that works just ship those files with your dedicated server.
PS. if you delete the LocalShaderCache ones before starting you’ll compile all shaders again, which will make sure you only have fresh compiled shaders (otherwise you’ll probably also have garbage that stacks up in the localshadercache during dev)