Could you send a screenshot?
What OS do you use, can you press ALT + ENTER when its open to see if it automatically full-screens it? Maybe that's a resolution issue?
Odd issue with the video, (The animations are video files) can you try using bluestacks https://www.bluestacks.com/
and run the android version on it? (Windows version with wine) [That will emulate Android > on windows > on linux XD]
But it might work!