We are aware of three issues relative to the Masterwork Weapon Event.
1: Visual Issue: Incorrect name displayed on the Summon Gate. ‘Seasonal Summon’ should be ‘Event Summon’.
2: Gameplay Issue: Bonus Chest counter showing as ‘sold out’ incorrectly in some cases.
3: Visual Issue: Appearance rates for the Masterwork Summon are displayed incorrectly.
Please accept our sincerest apologies for these issues. We are currently investigating them here and hope to have them resolved soon!