The file is not loading correctly

Hello, I encountered a problem that this link displays the video in 256 Bite, although the video itself weighs 1.5 gigabytes. Through another extension, it downloads correctly. Other videos seem to display correctly too. I don't understand what the problem could be.
Used the service: https://cobalt.tools/
Video: https://vkvideo.ru/video182431240_456241628
Generated link: https://nachos.imput.net/tunnel?id=y0O3Xt1GC_9yy-5MtC40l&exp=1736629411389&sig=_vC8gHDLQK5XE0J9S3SoEnSyWq_JwbBNPX5pSJ4otQI&sec=Yty6nf1kBGQclGl7JTAmYwcxKpNcMJI2dibdq-bAomY&iv=DS8WVOtEYoX9Do-Dpua9ZA