Monk does not do damage when casting bells

While casting bells, other players destroy the bells and I do not do damage to the monsters. Can you fix this please as this is a big issue for me. probably an issue for others as well.

This is working as intended. IIRC it was made so other players could not damage the bells, and then switched back during PTR.

If you want to play Wave of Light in a group you will need to find a way around this particular shortcoming, Blizzard will not change it.