video playback problem in sequence

good day! I need to record a sequence with media content, but sometimes it displays too fast and sometimes too slow. The same thing happens with blueprints. Please help to solve.

Фон - Cool Blue Abstract ¦ Animation Video Techno Background ¦ Футаж для видеомонтажа - YouTube - video example

Bug - YouTube -
sequence output

via level blueprint doesn’t work either