Figwheel doesn't detect most changes in my code

Figwheel displays the code bellow just fine. But I have to refresh the page to see any changes. What has to change for Figwheel to show changes? Is there a command to force redraw, without losing the application state?

BTW: Chrome has Disable Cache true and the CLJS icon appears when the file is saved.

(defn simple-example []
  [ui/mui-theme-provider {:mui-theme (get-mui-theme
                                       {:palette {:text-color (color :blue800)}})}
   [:div
    [ui/app-bar {:title                 "Hi all"
                 :icon-class-name-right "muidocs-icon-navigation-expand-more"}]
    [ui/paper
     [:div
      [ui/tabs
       [ui/tab {:label "Menu" :value "0"}
        [:div "Hello world"]]]]]]]))

(defn ^:export run []
  (render [simple-example]
          (js/document.getElementById "app"))))