Equipping a shield in combat

On my shaman as elemental.

I first saw this when having my Underlight Angler equipped and swapping to my weapons when i enter combat.

I can start combat with my Fishing rod equipped
Swap to my 1hander and shield
shield fails to equip saying that i cant do that in combat

I can start combat with my 1hander and shield equipped
Swap to my fishing rod
Swap to my 1hander and shield
shield fails to equip saying that i cant do that in combat

I don’t recall there being a change to changing a shield in combat.

The shield in question is
Bulwark of Brimming Potential Mythic 10
(ilvl 465)
w/ Corruption 13% Versatility.

Could this be related to corruption?


I have now removed the corruption from the shield as i got better ones.

I can start combat with my Fishing rod equipped
Swap to my 1hander and shield
Both 1 hand and shield equip fine

I can start combat with my 1hander and shield equipped
Swap to my fishing rod
Swap to my 1hander and shield
Both 1hand and shield equip fine


So, EQUIPPING A CORRUPTED shield in combat works
EQUIPPING A CORRUPTED shield in combat does not.

Is this working as intended?