Guild Wars 2

For the first time since starting GW2 about 11 months ago I attempted completing four of the listed tasks in October. Yesterday, having completed three tasks out of four, I was on the verge of completing the ‘Defeat the Champion Slayer’ task. When I finally did this the task didn’t show as complete and my % achievement fell back to 75%. Is this a bug or am I not understanding the logic here?

When you ‘task’ one of the Monthly Achievements, or any achievement really, you can set it to show by tier, or by complete task. It sounds like you may have it set to tier, and you finished up the 3rd tier, and now it is showing the complete task (at 75%) which is where it would be after completing the first 3 tiers. Check how many Champions you have killed in total, against how many are needed for the entire month.

Thanks. I think you might be right. My system is now showing 53/60 & 88% achievement.

Glad to have been of some assistance. =)