I assume thats true. What I have learned from this forum is that it possibly might be a caching problem?
Another solution, which does not require much change in your index.php
is the one I have outlined in this post together with this cookbook recipe. This way, your index.php needs only to look like this:
<?php
require 'kirby/bootstrap.php';
$kirby = new Kirby([
'roots' => [
'index' => __DIR__,
],
]);
echo $kirby->render();