This is also happening on my black mage. Certain spells cause me to put my staff away immediately after casting spells and I stand with my hands down as if I'm out of combat as well. It started happening after patch 2.1. I haven't tested outside of a duty, but it was happening to me on garuda and titan ex all last night. Very annoying, as it seems there is a slight delay in casting again after I put my hands down in that out of combat stance. I notice I carry my staff in a different way then before 2.1, that aesthetic change is nice, but I shouldn't be putting it away constantly in combat.