For test:
1. Create category
2. Create board inside (I added two boards)
3. Now try to remove category created in step 1 (including boards).
You will see only Token verification failed. Please go back and try again.. Error log is empty.
Tested on clean ElkArte 1.0.
Confirmed and tracked: https://github.com/elkarte/Elkarte/issues/1821
Hasn't this been fixed yet?
It looks like it was fixed a long time ago - ManageBoards.controller.php in sources/admin/contains the code, starting at line 371 (in my version, 1.1.6, YMMV)
Function for handling a submitted form saving the category.
What it does:
* - complete the modifications to a specific category.
* - It also handles deletion of a category. - It requires manage_boards permission.
- Called by ?action=admin;area=manageboards;sa=cat2
* - Redirects to ?action=admin;area=manageboards.