4:2:2 high profile encoded video not playing

[Selur]

does it really matter if 4:2:2 input file is going 4:20 chroma subsampling on a PAL VHS?
Some say color and chroma information is lost.

That is correct, if you convert for archival content, 4:2:2 or 4:4:4 makes sense.

upload on YouTube.

afaik Youtube always converts to 4:2:0, so uploading 4:2:0 makes more sense, this way you have control over the color conversion.
Also, might also want to check YouTubes guidelines about what color matrix, transfer,... they expect.
The less color conversions they have to do, during their conversion, the more control over the colors you have.

To recate the problem please capture a short VHS rip using Virtualdub and Lagrith, Import the lagrith file to Hybrid choose 4:2:2 (high profile)

Plays fine here using latest MPC-HC. Windows Media Player can't decode H.264 4:2:2 content unless additional decoders are installed.

Cu Selur