So, I upgraded from version 5.4.1 (I think) to 5.4.1.1 (through the admin backend of the site) and it worked smoothly like no other CMS I know but then all of a sudden the WYSIWYG editor wasn’t showing anymore when I wanted to edit a page (no JS errors either; it just showed the small default textarea). I searched the forums but found nothing of help. I did even do a manual upgrade via FTP but that still didn’t do it. Frustrated, I looked for info on how to downgrade and found a post saying that one should remove a certain line (the version number) from /config/site.php and interestingly there was indeed an additional line reading “<?php define('DIRNAME_APP_UPDATED', 'concrete5.4.1.1');?>” that must have been added by the auto update script. I commented it out and TADAA! it’s working again.

Say, is this a bug or what?