Character is in Act 4 Highgate, without the Highgate waypoint, and has no quest state to progress

One particular character I've played in Path of Exile's open beta (patch 0.10.0g) has not logged in again before patch 3.13 and later. In other words, this character is 3300+ days old (and did not login for 3000+ days).
This character (level 61) is in Act 4 Highgate (added in patch 2.0.0), but with a messy quest state. This player character seems to have never visited the The Aqueduct (and cannot exit from Highgate to it, it doesn't exist), and the Highgate waypoint is missing from the World Screen, even if the waypoint in town is interacted with. The character cannot leave the town via any of the three exits, which says: "You do not have the required quest state". The character can accept Act 4 quests from Highgate's NPCs, however doing so does not grant access to the next areas (The Dried Lake & The Mines) to continue in Act 4.
Funnily enough, the World Screen states this character has completed the Act 3 quest "The Sceptre of God": Dominus has been killed, and the World Screen tells the player can now travel to Act 4 – although it remains uncertain to me how I would progress in this state legitimately. I suspect taking the waypoint to Act 3 and killing Dominus again may resolve this to take the player to The Aqueduct, but for posterity I'm keeping the character this way for now.
I also remark that it is not plausible to quick-travel to other players when the required quest state is not available, e.g. characters with quests completed up to Act 3 cannot quick-travel to another player's Act 10 town. This is as intended, and was not used (to my knowledge) to reproduce this bug.
I can only assume placing the character to A4 Highgate has been done automatically when the available acts were expanded beyond the original three acts available during the open beta, however I have to assume this transition doesn't set the correct quest state today (and with the removal of difficulties in patch 3.0.0).
/debug: #443,796,646




Personal thoughts about how to possibly resolve this: If the character is in Highgate, always allow to exit to The Aqueduct (I don't see a particularly good reason why not, assuming exiting The Aqueduct into Highgate unlocks Highgate's waypoint). Additionally, taking the quests from Act 4 NPCs should always unlock the exits to allow to progress in the Act, particularly if The Sceptre of God has been completed. Make sure the game code to transition pre-2.0.0 characters gets the quest state correct today to progress.

The Imperial Gardens, The Sceptre of God and The Library have not been visited by this character (as seen in one of the screenshots). Notably, The Imperial Gardens did not exist before patch 1.0.0. However, somehow "A Swig of Hope" has also been completed by this character (despite never visiting The Imperial Gardens).

Possible duplicate reports:

• My character cant go out highgate and use way point (user registered during patch 1.1.1c, reported the bug in version 3.10.1c)
• Killed dominus, cannot enter highgate, cannot return to aquaduct (user registered during patch 1.0.0g, reported the bug in version 1.3.1h – a day prior the release of 2.0.0 and Act 4?)

Except you are not at the exit to aquaduct


That exit is to Dried Lake

"

neohongkong wrote:

Except you are not at the exit to aquaduct


That exit is to Dried Lake

You are correct, however it does not seem to be my concern because all the exits are affected (though not depicted).

well, since it is now 3.17 i guess as usual , you need to wait for exceptional dev that is busy for 3.18 launch to fix a 2.0 bug....which is more than 7 years ago


as far as i know all of my 2.6 character who went to map has granted all quest completed in 3.0, but that is 5 years ago.