Confirmed.

I think #6329, #6331 and #6348 are dealing with the same problem.

The reason for that are the recent changes in #5675.
By replacing

$params = $app->getParams();

with

$params = JComponentHelper::getParams('com_tags');

in the frontend Tag model the menu item options are not merged any longer to the $params so that only the component options are used.

@zero-24
Maybe we could replace the actual code with:

    // Load the parameters.
    if ($app->isAdmin())
    {
      $params = JComponentHelper::getParams('com_tags');
    }
    else
    {
      $params = $app->getParams();
    }

    $this->setState('params', $params);

That should solve the current issue as well as the issue in #5675.

Works for me Thanks!

Please check and comment in: #6354

I'm closing this issue now that we have a pull request