[Not a Bug] SHIELD CHARGE CANNOT HIT MOVING ENEMIES

Shield charge only damages the targeted enemy, other enemies are pushed to the side as described on the gem. It can only damage the targeted enemy if you do collide with it on the movement, or if it's in within melee range on completing movement or stopping for a collision. The charge ends if you collide with the target and perform the melee strike, so if the enemy moves closer to you, you won't charge as far.

This is not a bug, but we do have plans to revisit shield charge in the future to improve it's usefulness.