I added custom field to my project "Acceptance criteria", it's just simple text field. Action for this field is required. Default issue type is "Task" on which added field is visible and required, as it should be. But if I make "Bug" issue(which is part of the same project) custom field is not visible, but is somehow required. I am not sure if my configuration is correct or it's some other issue with Jira.
I don't need "Acceptance criteria" field on "Bug" issue at all.