Edit ACL name not working

It does use mod_security. Does that rule it out as a problem?

No we run mod_security on most of our servers. You have to either turn it off temporarily (SecRuleEngine Off) while you make your changes or look at the server logs for the ID number of the rule that is being triggered. You can then permanently exclude that rule for that particular domain.

Try making the name of the new policy all alphabetic characters with no spaces.

Thanks for the suggestion Bob but it didn’t make a difference.