Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - Bugs & Technical Problems [Bug] No Hall of Echoes Waypoint

Spoilers ahead:

Unfortunately my game is one of the ones affected by the Malady progression issue where she uses up a bunch of her lifeforce to find the location of the Nameless Isles despite everything. This led to her dying upon arriving to Arx, and since my friend and I did not know of the issue where you must select a certain dialogue option, we ended up playing past that point and I no longer have any saves prior to her death.

So now we have no access to Tarquin, the respec mirror, and our storage.

I have attempted to edit my save file to add the waypoint in, following https://steamcommunity.com/app/435150/discussions/0/1495615865228665274/ but it doesn't work so for now I just have no way of accessing the waypoint and all the stuff that comes with it.

Managed to figure it out and fix my game.

Looking at the code that others have posted for what worked for them, I noticed one thing: The hall of echoes waypoint ID was 29 above the crashsite ID. So it'd look something like this as a rough example:
<node id="Waypoints">
<children>
<node id="Waypoint">
<attribute id="WaypointName" value="WAYP_ARX_TheCrash" type="22" />
<attribute id="Region" value="ARX_Main" type="22" />
<attribute id="WaypointTrigger" value="0000000000" type="24" />
</node>
<node id="Waypoint">
<attribute id="WaypointName" value="WAYP_ARX_LadyVengeance" type="22" />
<attribute id="Region" value="ARX_Main" type="22" />
<attribute id="WaypointTrigger" value="0000000029" type="24" />
</node>
</children>
</node>
So if anyone else is having trouble with this issue, and the stuff posted in the steam thread didn't work out exactly, try taking the value of the Crash site waypoint and adding 29 in the XML. It should work.