Hello. Till some days ago it was possible to upgrade Vesper Dualsword in Eternal core Dualsoword whit the donation coins upgrade gear system.For this i decided to buy donation coins from store.Today i was trying to upgrade my vesper sword dualsword and i noticed that i can't do Eternal core dualsword anymore.Instead it is possible to upgrade in Periel dualsword at max. Did anyone else noticed this change?