Theme twig files front page is empty I am trying to build a custom theme in drupal.
I have two page files:

page.html.twig
page--front.html.twig


both files have the same code: 

&lt;div class="container"&gt;
    {{ page.myheader }}
    &lt;div class="row"&gt;
        &lt;div class="col-md-3"&gt;
            {{ page.sitebrand }}
        &lt;/div&gt;
        &lt;div class="col-md-6"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-3"&gt;


The Problem:
I see the blocks in all the pages except the front page.

by the way: 
I did set my front page as this:

I created a simple page with 'front' alias.

Is this cousing a problem?

The question: 
What am I doing wrong? 
How can make different display in the front page?

full page--front.html.twig

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;div class="container"&gt;
    {{ page.myheader }}
    &lt;div class="row"&gt;
        &lt;div class="col-md-3"&gt;
            {{ page.sitebrand }}
        &lt;/div&gt;
        &lt;div class="col-md-6"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-3"&gt;

xxx dagfv

            &lt;button type="button" class="btn btn-lg btn-block"&gt;
                Default
            &lt;/button&gt;
            &lt;div class="btn-group"&gt;

                &lt;button class="btn btn-default"&gt;
                    Action
                &lt;/button&gt;
                &lt;button data-toggle="dropdown" class="btn btn-default dropdown-toggle"&gt;
                    &lt;span class="caret"&gt;&lt;/span&gt;
                &lt;/button&gt;
                &lt;ul class="dropdown-menu"&gt;
                    &lt;li&gt;
                        &lt;a href="#"&gt;Action&lt;/a&gt;
                    &lt;/li&gt;
                    &lt;li class="disabled"&gt;
                        &lt;a href="#"&gt;Another action&lt;/a&gt;
                    &lt;/li&gt;
                    &lt;li class="divider"&gt;
                    &lt;/li&gt;
                    &lt;li&gt;
                        &lt;a href="#"&gt;Something else here&lt;/a&gt;
                    &lt;/li&gt;
                &lt;/ul&gt;
            &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;
    &lt;div class="row"&gt;
        &lt;div class="col-md-12"&gt;
            &lt;nav class="navbar navbar-default" role="navigation"&gt;
                {{ page.mainmenu }}
            &lt;/nav&gt;
        &lt;/div&gt;
    &lt;/div&gt;

    &lt;div class="row"&gt;
        &lt;div class="col-md-3"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-9"&gt;

        &lt;/div&gt;
    &lt;/div&gt;
    &lt;div class="row"&gt;
        &lt;div class="col-md-2"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-2"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-2"&gt;
        &lt;/div&gt;
        &lt;div class="col-md-6"&gt;
        &lt;/div&gt;
    &lt;/div&gt;

    &lt;div&gt;
        {{ page.content }}
    &lt;/div&gt;
&lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;
You have two problem. 


page--front.html.twig is special suggestion template for front page. Any url set to front page always use this template => You don't need set alias for this.Just set page you want to front page.
Don't add html tag to page template. The tree of template is html=>page=>region=>block... Html tag exited in template html.html.twig. 


And more you can setting twig debug to see current home page use template?