UPDATE: I have now fixed this, and uploaded new files for all of the assets. If anyone finds one that's wrong please let me know.
In the asset packs that I have uploaded already I have found that the Read Me / Instructions file has 720p Name Badge sizes listed wrong. Instead of being 414 X 43.5 They should be 546 X 57.
I will have to go into each file and fix it as I get time, and then reupload them. I will make sure to email anyone who does purchase with the correct information as well.