Why do videos from vk.com on Android play in the corner of the screen?

Question

Android

Actually, subject. The problem is observed only on VK. The version of the application is the latest, the version of the bucket is 4.1.1
Only part of the video is visible, the rest is somewhere outside the screen. The quality changed, it does not help, and some videos are played without problems. I can't attach a screenshot because it's a black screen instead of a video. What could be the problem?