Why is the image crumbling after rendering?

Question

Video

Downloaded video file. In the original, it has a wild bitrate, but it opens and works perfectly in the player.
Original:

AVC, 5137 Кбит/сек, 1920x1080, 23.976 кадр/сек
AAC LC, 156 Кбит/сек, 2 канала, 48 КГц - eng

I'm trying to burn subtitles into it using Handbrake. (This is not the point). There is a function for previewing the result, where everything is also great. After rendering, the video catches a hard trip and crumbles. (The preview file gives a good result, but the final one does not)

spoiler

I pinched the video through XviD4PSP. Now I have

AVC, 2072 Кбит/сек, 1920x1080 (1920240:1080), 23.976 кадр/сек
AAC LC, 128 Кбит/сек, 2 канала, 48 КГц - en

Handbrake has normal settings.

spoiler

The picture is still brutally strewed. I tried, out of desperation, to pull the video stream out of the container and re-render it in Premiere Pro. No program accepts this file as valid. Even YouTube refuses to upload a broken video file. Knowledgeable people, tell me please.