I don't know how to make it so mo bends works in wynncraft

only the weapon animation that is not working the running and jumping is working fine. Is there a way to fix it so mo bends weapon animation work on wynncraft? Do I need to edit the config to make it so mo bends weapon animation work for wynncraft if so how?

 

Mo bends weapon animation works off vannila swords, a lot of assassin's weapons are not actually swords but other items such as the earth variant being leaves. Though they don't look like it because of the twynncraft texture pack. I can't really think of any other reason why it wouldn't be working unless you're playing another class like warrior.