It looks like an issue with the FOP2 Presence Box DND Integration. If this plugin is enabled in FOP2 and a user sets their extension to DND, FOP2 sets their presence to 'Unavailable' or the DND equivalent in FOP2. When the User disables DND on their extension, FOP2 status does NOT update, and this FOP2 presence status of "unavailable" prevents them from taking calls in the queue. If I set the extension to Available in FOP2, they can again receive calls in the queue. For now, I have disabled this plugin to prevent this from happening.
