First of all, thank you so much to take your time and organize the info. The report helps me a lot. There are so many things to test that it's getting out of hand... thank you so much!
"I like that there were multiple "challenges" to achieve [...] I hope you'll add more interactivity and/or goals..."
Yes, exactly at its core, it's already a system where I declare the script from a CSV without having to program it by hand. It controls actions and inputs phrases into the LLM (MoreThanWords\Nexus\MTW\Database\Levels\Level_script_tasks_1.csv). It's missing some details, but it's coming along nicely. Basically, I use a queue that stores tasks (I'm not using Unreal's native behavior tree...), and the tasks work by applying polymorphism (very elegant in terms of code). The idea is to make it easier to develop the adventure in the future :).
I've confirmed the issues you reported, and I'll fix them. Thank you so much for your help! Amazing!