Hello Eric, thank you very much for doing these tests!
Each artboard was 1920x1920px because this is the size of the final video.
Now I’ve imported the .ai file that you edited and I see it correctly, but if I increase the size of any element it appears pixelated (because the size is much more smaller).
Maybe I have to create an .ai file for each screen (1920x1920px) and import them individually? Do you think I could fix?