I am using Moodle 3.0.3+.
In Site administration > Plugins > Availability restrictions > Manage restrictions, there are six restrictions plugins (activity completion, date, grades, group, grouping, profile). When I enable all 6 plugins, the "Restrict access" setting in Activity setting webpage only shows a textarea, instead of a "Add restriction..." button, and the file picker keeps loading if there is a file picker for the Activity setting page.
When I check in FireBug of FireFox browser, there is an error "TypeError: M[r] is undefined at the URL /lib/editor/atto/autosave-ajax.php
When I disabled "activity completion", "grouping", "profile" plugins of Availability restrictions, the setting webpage can be displayed properly.
Please advise and help.