After the Thulecite Crown's forcefield is triggered, it makes the mouse unable to click on the protected objects.

When other creatures or punch bags equip the Thulecite Crown and trigger the Ancient Forcefield, they will become unclickable with the mouse. This will result in being unable to inspect them, attack them with the mouse, or give them items at this time.But you can still use the "f" key to attack the target.
When it happens on Icker, only the areas where shields appear cannot be clicked. It feels like breaking the fourth wall, as if the shield is blocking my hand, but I can still attack using the "f" key.