I use Sierra on my MacBook Pro 2015 too but does not even show the launcher anymore even after trying reinstalling multiple times lol
I love GW2 better than any other MMOs but this issue really is a shame. Also it is kind of unfair for those people who use Mac because they bought it at the same price as Windows users without even knowing that there are many technical issues on Mac client (because Anet did not warn us about specific issues at all before we purchased it) so they can only enjoy half of what Windows users can.
I really hope they make the game PLAYABLE before they even release any other contents that we can’t even play anymore or just completely eliminate Mac client for GW2 and get us our money back lol
I love GW2 but I am still having the issue even with the latest macbook pro. No offense but it has been so long and seems like you are ignoring the issue without even giving us any updates(not looking forward to fix it any time soon but at least some proofs that your are actually working on it) so I have decided to uninstall the game if not fixed by the end of year 2016 since it is very difficult to enjoy it with the crash. Seriously, I do not even know why I bought/downloaded the mac client of this game and why it is even buyable/downloadable if it going to crash every time I try to enjoy the game. It seems I just wasted my money.