There is a problem logging in. I did all the settings as I mentioned in the explanation, but I don’t know where the problem is. This is a video that explains the problem.
https://drive.google.com/file/d/1FIs_ULMnd2O9Bf0lUJbXGAn6Z8ESvz8c/view?usp=sharing
As for the rest of the problems, as you know, the first problem is that there are video clips that work and video clips that do not work, even though they are in mp4 format and do not work. The second problem is that the translation works in landscape mode and does not work in full screen mode. The third problem is that the translation works on all video clips and does not stop when you leave the video and play it again.