It's not a bug, but I'm changing it so that you can always see the titles of a usergroup you're in as that's more logical. Previously it was privilege based, apart from a few places.
The CONTENT_VALIDATION thing sounds like you have the workflows addon partially installed. lang_custom/EN/workflows.ini not there but ources_custom/hooks/systems/notifications/workflow_step.php there.
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#2825 - Profile edit 'secret group' issue
The CONTENT_VALIDATION thing sounds like you have the workflows addon partially installed. lang_custom/EN/workflows.ini not there but ources_custom/hooks/systems/notifications/workflow_step.php there.