Since the most recent Phabricator upgrade, when I go to https://phabricator.wikimedia.org/maniphest/task/edit/form/1/ to try to file a new Maniphest task, if I fill in the title and description fields and submit the form, I get the following error message from Phabricator:
Access Denied: Maniphest You do not have permission to edit task policies. Users with the "Can Edit Task Policies" capability: This object has a custom policy controlling who can take this action.
Other Phabricator users can apparently file tasks.
I'm not touching any of the "Visible To" fields or any other fields in the form besides "Title" and "Description". I tried logging out and logging back in and the same error persisted.
I can edit existing tasks.