Underlord is a great idea and concept and you should definitely keep working on it. What definitely is not working is fullfilling its purpose.
Underlords subparness ranges from: from not executing commands to doing something completely random. Having no sense for aesthetics and what a proper video should look like or how it should be balanced.
In its current state, unusable would be an exaggeration. I have spent over 400 credits for two one minute videos and they are still worse than just having one normal A-Roll video.
The feedback is harsh and I want to apologize for that, as the concept and idea is great. Its understanding of video editing and understanding prompts just needs to be greatly improved.