Uncommon shield better than Rare shield

Two spider drops, but the uncommon shield is better than the rare shield as it comes with +4 INT.

 

Upon further thought, I've had the Rare Overgrown Shield of the Mage for a few weeks or so. It's possible that the Rare shield is pre-equipment modifier update, and the Uncommon is post update.

 

It seems to me like the glitch where you lose stat bonuses from modifiers happened to you. I don't know what causes it, but it is a wee bit common.