l4zsowu48t12 This is the key part of the instructions, I think:
Because of this, the script should be run again when core mods and mods that affect the UI are added or removed from your installation of the game.
So delete the tiny-ui-fix.package you have, and rerun the command to generate a new file.
I don't know whether the custom content that's working for you now has any effect on this mod, and it doesn't seem like it should given the description, but then I don't know what you've installed or how sensitive the file is. And it's an easy test.
Please also delete the five cache files in your user folder again.