So ever since launch, I've had issues with the Journal being wonky / broken. So I put Chronicles' on hold until some of the baby bugs could go out of the window.
During that time, I made some smaller mods, one of them being Black Cat+
which one of its features being a small quest to make the cat a permanent follower again, but with combat abilities.
I've spent my morning tracking down the source, removing all story goals and suspicions, eventually I removed all the Journal edits, practically just deleting content from /Mods/BlackCatPlus/Story/Journal/ which made vanilla quests work and show up in the ingame journal again.
I decided to try make the most barebones new quest in the journal which now was new and fresh, unedited, and once saved, vanilla quests once again fail to show ingame, leaving the player with a blank journal.
So my current conclusion is that adding new quests seems to be broken currently...?
Here's an image of the journal editor.
ItemTemplateAddTo("BlackCat_Skill_Summon_Cat_07b0da07-563e-4d4a-830e-19b04df1c79f", _Player, 1, 1);
This also explains why I had problems with quests not showing in Chronicles of Divinity anymore. I thought at first perhaps it was something faulty with my implementation of a new origin character, but that's debunked.