Have you run into any bugs? If so, please offer step by step details so we may be able to reproduce your experience.
Kirba's combat barks never play during his fight, and he seems to be missing some animations.
Defeating The Curse grants the Silence in the Shrine achievement and progresses the Advanced/Elite versions of that achievement, but does not grant the Cleansing the Curse achievement or progress the Advanced/Elite achievements versions of that achievement.
The "spirit world" effect on around the edge of the screen doesn't disappear when The Curse is defeated.
Enemies don't die when knocking them off the map.
Accepting the flashpoint mission from the solo tab of the activities window doesn't transport you to the flashpoint as it does with other flashpoints.
I'm not sure how to replicate this one, but to give as much information as I can: I completed the flashpoint three times on story mode. During my first run: I did not do the bonus quest, I gained the Dark Corruption debuff while "exploring the cavern below the shrine", and the debuff went away when I "found the source of the corruption". During my second run: I did the bonus quest, I never got the Dark Corruption debuff while holding the light from the bonus quest, I gained the debuff as soon as I lost my light by interacting with the Ancient Shrine, and the debuff never went away, preventing me from using Exit Area after defeating the final boss. During my third run, I did the bonus quest and never gained the Dark Corruption debuff even after I lost the light from the bonus quest by interacting with the Ancient Shrine.
I had some issues with the visual effects for AOEs not representing the actual AOE hit. For example, the Corrupted Vorantikus's Cleaving Strike red conal would appear, I would roll completely through the boss, now positioned directly opposite the direction of the conal, and I would still get hit.