My guild just tried to attempt to do Scratch Sentry Defense, and the same bug happened. We even left the instance, abandoned the mission and reactivated it again. The representative still says the mission is closed and won’t start the challenge.
Having the same exact problems as other people have discussed in this thread. Hopefully this problem is still being looked into!
Here are my specs:
-21.5 inch iMac, Mid 2011
-OS X Lion 10.7.5
-4 GB 1333 MHz DDR3
-2.5 GHz Intel Core i5
-AMD Radeon HD 6750M 512 MB
Not affiliated with ArenaNet or NCSOFT. No support is provided.
All assets, page layout, visual style belong to ArenaNet and are used solely to replicate the original design and preserve the original look and feel.
Contact /u/e-scrape-artist on reddit if you encounter a bug.