Why can´t i open my Masterwork chest?

Ok so i bought a masterwork chest and a key with a gemstone since i only had one and had figured out that i probably wouln´t try to get 9 more... I go to open it but the chest itself wont appear on the screen but is in my inventory while i can pop up normal chests and open then. i tried left clicking on the masterwork chest and pressing "open masterwork chest" but nothing happens... i restarted leauge but same shit happened... i even tride restarting y computer and it still wouldnt work... HELP PLEASE :(((((
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