Block Regions in node.html.twig
Fixed by adding this function to my theme

function YOURTHEME_preprocess_node(&amp;$variables) {

$block = \Drupal\block\Entity\Block::load('views_block__sidebar_meetings_group_page');
$variables['block_output'] = \Drupal::entityManager()
  -&gt;getViewBuilder('block')
  -&gt;view($block);

}


thanks @ivan jaros and @berdir