WYSIWYG editor not opening #3293

Attempted Debugging

• I have read the debugging page

Searched GitHub Issues

• I have searched GitHub for the issue.

Describe the Scenario

After update from v21.12.5 to v22.02 it seems that the WYSIWYG editor does not work anymore.
Everything works except if I create a new page or edit an existing page the page stays empty an no editor is seen.
If I change in the setting to 'markdown' I can edit a page or create a new one.

Exact BookStack Version

v22.02

Log Content

Nothing found in the error log
Also no error produced

PHP Version

7.4.28

Hosting Environment

Debian Bullseye