I recently made a core update with drush for D8. After the update I saw that it removed a folder from the 'vendor' folder on the server? Why did that happen?
The module has been installed via Composer because it needs dependencies to be installed: https://www.drupal.org/project/alinks
Re-installing the dependencies, works:
composer require "wamania/php-stemmer"
Is there something I did wrong? Do I need to update the core in a different way rather then using drush if you have installed modules via composer?
Removing the module via backoffice D8 and then removing folders from 'module/contrib' and 'vendor' and then re-installing the module works, but that is just not the way to do.