Yesterday I played the HoT Act 3 Roots of Terror mission for the 2nd time, and all the achievement bubbles for the left, center and right path and the chak pit cleaning showed up.
I then proceeded on the right path and completed the path to the chak. I beat the chak at the end. I then proceeded to finish the pit achievement as well (got the achievement rewards, but the little achievement bubble over the skill bar remained in place afterwards). I then proceeded to talk to the magister and completed the instance by talking to the party members nearby.
I recieved the instance completion rewards, but I did not get the ‘right path’ completion achievement. I cannot see any other qualifiers that I needed to perform to recieve this.
Possible bug or did i miss something?