I completed the Leviathan Raid Prestige difficulty and after a result of defeating Calus and retrieving the chest contents at the end, no achievement (The Prestige 120g). I attempted the method sign-out of profile for bugged achievements but it didn't help with the issue. Raid report website says I have completed the raid, and the Triumph for the raid has calculated progress as well. This is disheartening. Any suggestions for this achievement to pop?