Nothing to do with addons mate - multiple other people stood around at most of these quests waiting for mobs that don't spawn. Story quest is just badly designed with i) mobs stuck in geometry that you can't get at ii) no way to get out of the initial area when you re enter the instance. Crafting is just fucked, not giving XP and the game thinks Im max lvl as tier 7 is open to me when I'm at tier 4.
Just a lot of poor quality game design IMO from lvl 30 on up. Level 35 zone you do the same quests with slight variance multiple times. Kill quests take increasingly more mobs to stretch out the game too. Mob density and mob balance is all to fuck, Soldier terminal missions in really stupid places where you are guaranteed to get more adds than you can handle. Up to 25 was fine, after that it just got annoying and the jokes got old and lame.
Petitioning a bug and getting a canned response with no relation to the issue suggesting it might be my GFX card just took the piss.
This is just leveling mind, not end game. We'll see how it goes but right now it feels as though the main thing this game will achieve is make WoW seem refreshing, which is a fucking crime.