We're on 4.6.9 and Drupal 7.
Ever since the changes to, then the rollback of, Access Control Levels (ACLs) /user permissions in 4.6.6/4.6.7/4.6.8 (see here), I can Assign To: an Activity to all users except our two Admin users, and one other user, who has the same permissions as other users who can have an Assign To: for an activity.
I'll check these three user records (one of which is mine) for any corruption or other weirdness.
Has anyone else experienced this?
I'm not sure how I could duplicate on demo/sandbox without doing the same version updates/rollbacks we did from 4.6.6 to 4.6.8.