Druid - Werewolf Glyph - Damage Reduction not working?

Equipping or unequipping the Werewolf Glyph seems to make no difference in any visible stat in terms of the additional Damage Reduction bonus. The glyph is supposed to give 10% DR while Werewolf. Is this working at all?

Where you in town? Some buffs don’t work while in town and while not in the proper form.

Tried it in Werewolf form, outside town. Including in a NMV.

There is just no stat in the list that is added or increased, even when taking glyph on and off the board.