The character has been around since 2005. Since then it has been renamed and moved servers. But it’s an Undead, and started in Deathknell, Tirisfal Glades. Yet the tracker showed that I’d completed almost no quests there.
I went there today and did a few level 1 quests; and sure enough the tracker updated.
But I did these quests on this character more than a decade ago, and they shouldn’t have been available to me to go back and do. Even the most basic “The Truth of the Grave” Lillian Voss quest I could redo.
This is the same for several other zones I checked, so I was wondering if it was all broken by renaming or transferring the character. Or maybe anything pre-Cata?
I’d have thought quest completion would be one thing that definitely wouldn’t be reset. When I moved the character, all my Hellfire Peninsula quests came with me.
I have lost several items I used to have, but those were things removed from the game AFAIK (e.g. Nifty Stopwatch, Carrot on a Stick).
Annoying not to know which quests I’ve actually done or not though.
The game has not lost the list of quests you have completed unless you have switched factions in which case you lose the quests completed from the faction you were before (but I think Blizzard keeps the data in case you change back, only you are not able to get that information).
In this case, the problem is that you actually never completed any of these quests because you completed the quests Tirisfal Glades before Cataclysm, not the quests after the zone were revamped on Cataclysm. Almost every quest from Vanilla level 1-60 zones were completely replaced with Cataclysm, and the ones that seem it is the same quest are because Blizzard removed the Vanilla one and created a new one with the same name for Cataclysm.
Also, Wowhead does not show you any quest on that zone because in their retail database Pre-Cataclysm removed quests are not associated with any zone or dungeon, they are in the unsorted category.
In resume, not of the quest that you did back in 2005 are in the game anymore, the ones that you see you haven’t completed are the ones from Cataclysm. And Wowhead only show as Tirisfal Glades quests the ones from Cataclysm, not the original Vanilla quests.