yeah, he doesn’t spawn when you’re on the giant, but he still walks around.
This isn’t, nor has it ever been a bug. There’s a trigger which causes him to spawn while on the giant - and he doesn’t walk along the path.
He should spawn just after you kill Prince Nevarious - I believe there’s an accompanying yell indicating as much. Should you not kill Nevarious he simply won’t be available, and this killable Thrym will reset when Nevarious respawns.
If you watch there’s actually a neutral Thrym standing on the wall in the same area, who leaps down and becomes hostile upon Nevarious’ death.
such a horrible quest. One of many poor designs.
This quest is STILL bugged. I just tried today and Thrym is not spawning when you ride Gymer.
Not knowing how to do something doesn’t mean it’s bugged. I already outlined how to complete this quest with 100% reliability nearly a year ago, in this very thread. This has been the solution for 15 years - since the quest was first implemented in the game - and will work on WotLK Classic servers the same as Retail.
I’m taken to believe there is a bug with this quest, specifically relating to the orbs not providing any healing. But that does not prevent it from being completed if you actually pay even a small amount of attention.