How to create a video for a map?

the problem is that only saving works. I can't copy the file using WinRAR because half of the video is simply not visible, and when copying through the editor, all objects with animation are removed, which takes even longer to restore.
I opened my map, exited, and opened it again, and now the editor doesn't recognize the video at all, not even the remaining part. I guess I'll have to resort to the old-fashioned method of inserting files into the video using Notepad.