I just completed Candidate Trials tier 4 Event (solo) for Ellen Kiel.
I had earlier completed tiers 1-2 (got the achievement) and tier 3 (got the 1/2 achievement).
I got the event successful reward and saw Kiel talking to her first mate, but did not get the achievement.
Considering how extremely difficult this particular event was (at least to me), it’s extremely frustrating to not get the reward. Please fix this.