No icons with gulp build folder

[TELLO0815]

I build in Symfony 4.3 my Semantic UI folder under assets/. The problem is, that it is not loading the icons (fonts). If i change the webpack encore link (css and js) to the node_modules folder, it works. Icon folder is all correct in my assets semantic folder

// enable JQuery for Semantic UI
.autoProvidejQuery()

// add semantic-ui entries
.addEntry('semantic_styles', './assets/bundles/semantic/dist/semantic.min.css')
.addEntry('semantic_javascripts', './assets/bundles/semantic/dist/semantic.min.js')
Any idea why and how to fix this?