here is a list of bugs that I noticed
1. broken temple goblin doesn't appear after we take the workshop
2. graveyards are weird, sometimes I get ressed sometimes not and I need to fly to my corpse, it happened randomly to me
3. sometimes cannons from alliance sieges can be used by horde idk if that happens with horde cannons too didn't noticed any yet
4. after attacker team wins, walls that got destroyed doesn't reset till next battle starts which allow the team that lost to use the portal to dalaran near voa entrance
5. npcs: tower npcs respawn in the place they got killed instead of spawning in their actual spawn point. it can be abused by killing them 15-20 yards away from the point they respawned over and over till they get out of the tower range, after a srv crash they get spawned back to their actual spawn point and also sometimes they can't be attacked (here's a screenshot
http://prntscr.com/aeg5iu) when battle is not going on which makes the quest undoable till next battle. Also sometimes after attackers win vendors/quest givers are spawned for both sides.
6. there's some weird bug with fortress walls, some ppl can see them down and walk in with vehicles till chamber or till 2nd wall and destroy it then win the battle, it happens sometimes at few ppl only
7. Vehicular Gnomeslaughter and Within Our Grasp achievements don't work.
8. Battle related quests such as win/destroy tower etc doesn't work.
9. If you are dead when battle ends win doesn't count.
10. reentering siege double its HP same as it was with sota/ulduar vehicles.
imo either fix first 2 bugs (BT goblin and GYs) or close WG and release it when it's gonna be fair for both attackers and defenders, it's a waste of time to wait 2 mins to ress while we have 20 mins to attack