Steps to reproduce:
- Go to Control Panel --> Configuration --> System Settings --> Web Content and from the Characters Blacklist,
- Empty the first Characters Blacklist for the characters '&' and save.
- Go to Content --> Web Content --> and create a web content folder with the name: "Question & Answer"
Characters Blacklist could not be blank, Question & Answer" could not be added.
Characters Blacklist could be blank, Question & Answer" could be added.
The problem is that you cannot remove the first field (which defaults to '&'). Instead of emptying the first field for the character '&', replace it with a duplicate character (like '@') and remove the duplicate field.