This has not been fixed. It is bugged almost every single day, very often shortly after reset it rebugs. As this is about the only way one can get the Giant Slayer acheivment, it’s being constantly bugged is a major problem. It may be that there are some who know how to bug it and are intentionally doing so. There would be two simple fixes, one – block the entrance that causes the bug or two, put the event on a timer, once the event is triggered, it automatically resets itself within 15 minutes of it having been initially triggered. Not from when it was completed, but from when it was initially triggered. So, whether it fails or succeeds, the reset always happens.,